Companies:
10,793
total market cap:
$134.237 T
Sign In
๐บ๐ธ
EN
English
$ USD
โฌ
EUR
๐ช๐บ
โน
INR
๐ฎ๐ณ
ยฃ
GBP
๐ฌ๐ง
$
CAD
๐จ๐ฆ
$
AUD
๐ฆ๐บ
$
NZD
๐ณ๐ฟ
$
HKD
๐ญ๐ฐ
$
SGD
๐ธ๐ฌ
Global ranking
Ranking by countries
America
๐บ๐ธ United States
๐จ๐ฆ Canada
๐ฒ๐ฝ Mexico
๐ง๐ท Brazil
๐จ๐ฑ Chile
Europe
๐ช๐บ European Union
๐ฉ๐ช Germany
๐ฌ๐ง United Kingdom
๐ซ๐ท France
๐ช๐ธ Spain
๐ณ๐ฑ Netherlands
๐ธ๐ช Sweden
๐ฎ๐น Italy
๐จ๐ญ Switzerland
๐ต๐ฑ Poland
๐ซ๐ฎ Finland
Asia
๐จ๐ณ China
๐ฏ๐ต Japan
๐ฐ๐ท South Korea
๐ญ๐ฐ Hong Kong
๐ธ๐ฌ Singapore
๐ฎ๐ฉ Indonesia
๐ฎ๐ณ India
๐ฒ๐พ Malaysia
๐น๐ผ Taiwan
๐น๐ญ Thailand
๐ป๐ณ Vietnam
Others
๐ฆ๐บ Australia
๐ณ๐ฟ New Zealand
๐ฎ๐ฑ Israel
๐ธ๐ฆ Saudi Arabia
๐น๐ท Turkey
๐ท๐บ Russia
๐ฟ๐ฆ South Africa
>> All Countries
Ranking by categories
๐ All assets by Market Cap
๐ Automakers
โ๏ธ Airlines
๐ซ Airports
โ๏ธ Aircraft manufacturers
๐ฆ Banks
๐จ Hotels
๐ Pharmaceuticals
๐ E-Commerce
โ๏ธ Healthcare
๐ฆ Courier services
๐ฐ Media/Press
๐ท Alcoholic beverages
๐ฅค Beverages
๐ Clothing
โ๏ธ Mining
๐ Railways
๐ฆ Insurance
๐ Real estate
โ Ports
๐ผ Professional services
๐ด Food
๐ Restaurant chains
โ๐ป Software
๐ Semiconductors
๐ฌ Tobacco
๐ณ Financial services
๐ข Oil&Gas
๐ Electricity
๐งช Chemicals
๐ฐ Investment
๐ก Telecommunication
๐๏ธ Retail
๐ฅ๏ธ Internet
๐ Construction
๐ฎ Video Game
๐ป Tech
๐ฆพ AI
>> All Categories
ETFs
๐ All ETFs
๐๏ธ Bond ETFs
๏ผ Dividend ETFs
โฟ Bitcoin ETFs
โข Ethereum ETFs
๐ช Crypto Currency ETFs
๐ฅ Gold ETFs & ETCs
๐ฅ Silver ETFs & ETCs
๐ข๏ธ Oil ETFs & ETCs
๐ฝ Commodities ETFs & ETNs
๐ Emerging Markets ETFs
๐ Small-Cap ETFs
๐ Low volatility ETFs
๐ Inverse/Bear ETFs
โฌ๏ธ Leveraged ETFs
๐ Global/World ETFs
๐บ๐ธ USA ETFs
๐บ๐ธ S&P 500 ETFs
๐บ๐ธ Dow Jones ETFs
๐ช๐บ Europe ETFs
๐จ๐ณ China ETFs
๐ฏ๐ต Japan ETFs
๐ฎ๐ณ India ETFs
๐ฌ๐ง UK ETFs
๐ฉ๐ช Germany ETFs
๐ซ๐ท France ETFs
โ๏ธ Mining ETFs
โ๏ธ Gold Mining ETFs
โ๏ธ Silver Mining ETFs
๐งฌ Biotech ETFs
๐ฉโ๐ป Tech ETFs
๐ Real Estate ETFs
โ๏ธ Healthcare ETFs
โก Energy ETFs
๐ Renewable Energy ETFs
๐ก๏ธ Insurance ETFs
๐ฐ Water ETFs
๐ด Food & Beverage ETFs
๐ฑ Socially Responsible ETFs
๐ฃ๏ธ Infrastructure ETFs
๐ก Innovation ETFs
๐ Semiconductors ETFs
๐ Aerospace & Defense ETFs
๐ Cybersecurity ETFs
๐ฆพ Artificial Intelligence ETFs
Watchlist
Account
Northfield Bancorp
NFBK
#6993
Rank
$0.56 B
Marketcap
๐บ๐ธ
United States
Country
$13.56
Share price
0.15%
Change (1 day)
40.81%
Change (1 year)
๐ฆ Banks
๐ณ Financial services
Categories
Market cap
Revenue
Earnings
Price history
P/E ratio
P/S ratio
More
Price history
P/E ratio
P/S ratio
P/B ratio
Operating margin
EPS
Stock Splits
Dividends
Dividend yield
Shares outstanding
Fails to deliver
Cost to borrow
Total assets
Total liabilities
Total debt
Cash on Hand
Net Assets
Annual Reports (10-K)
Northfield Bancorp
Quarterly Reports (10-Q)
Financial Year FY2019 Q3
Northfield Bancorp - 10-Q quarterly report FY2019 Q3
Text size:
Small
Medium
Large
false
--12-31
Q3
2019
0001493225
0.0625
0.0413
0.0625
0.0413
0
0.10
0.30
0.11
0.33
0.10
0.30
0.11
0.33
0.01
0.01
150000000
150000000
60933707
60933707
49635673
49154878
0
0
0
0
P5Y
0
0
0
0
0
0
0
0
0.01
0.01
25000000
25000000
0
0
0
0
16.85
16.85
15.31
15.23
11298034
11778829
0001493225
2019-01-01
2019-09-30
0001493225
2019-10-31
0001493225
2019-09-30
0001493225
2018-12-31
0001493225
2018-07-01
2018-09-30
0001493225
2019-07-01
2019-09-30
0001493225
2018-01-01
2018-09-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2018-09-30
0001493225
us-gaap:RetainedEarningsMember
2019-06-30
0001493225
us-gaap:CommonStockMember
2019-07-01
2019-09-30
0001493225
us-gaap:CommonStockMember
2019-09-30
0001493225
2018-09-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2019-07-01
2019-09-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2018-07-01
2018-09-30
0001493225
us-gaap:TreasuryStockMember
2019-07-01
2019-09-30
0001493225
us-gaap:RetainedEarningsMember
2018-09-30
0001493225
us-gaap:CommonStockMember
2018-07-01
2018-09-30
0001493225
us-gaap:RetainedEarningsMember
2019-09-30
0001493225
us-gaap:RetainedEarningsMember
2019-07-01
2019-09-30
0001493225
us-gaap:RetainedEarningsMember
2018-06-30
0001493225
us-gaap:CommonStockMember
2018-06-30
0001493225
us-gaap:TreasuryStockMember
2018-07-01
2018-09-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-06-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2019-06-30
0001493225
us-gaap:TreasuryStockMember
2018-06-30
0001493225
2019-06-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2018-06-30
0001493225
us-gaap:CommonStockMember
2018-09-30
0001493225
us-gaap:TreasuryStockMember
2018-09-30
0001493225
us-gaap:RetainedEarningsMember
2018-07-01
2018-09-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-07-01
2019-09-30
0001493225
us-gaap:TreasuryStockMember
2019-09-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2019-09-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2018-09-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2019-09-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2019-06-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-09-30
0001493225
us-gaap:TreasuryStockMember
2019-06-30
0001493225
us-gaap:CommonStockMember
2019-06-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2018-06-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-06-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2019-07-01
2019-09-30
0001493225
2018-06-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-07-01
2018-09-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2018-07-01
2018-09-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-09-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-01-01
2018-09-30
0001493225
2017-12-31
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2017-12-31
0001493225
us-gaap:CommonStockMember
2019-01-01
2019-09-30
0001493225
us-gaap:RetainedEarningsMember
2018-12-31
0001493225
us-gaap:AdditionalPaidInCapitalMember
2019-01-01
2019-09-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2018-01-01
2018-09-30
0001493225
us-gaap:TreasuryStockMember
2018-12-31
0001493225
us-gaap:RetainedEarningsMember
2017-12-31
0001493225
us-gaap:CommonStockMember
2018-12-31
0001493225
us-gaap:TreasuryStockMember
2018-01-01
2018-09-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2018-01-01
2018-09-30
0001493225
us-gaap:CommonStockMember
2017-12-31
0001493225
us-gaap:TreasuryStockMember
2019-01-01
2019-09-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2018-12-31
0001493225
us-gaap:CommonStockMember
2018-01-01
2018-09-30
0001493225
us-gaap:RetainedEarningsMember
2019-01-01
2019-09-30
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2019-01-01
2019-09-30
0001493225
us-gaap:RetainedEarningsMember
2018-01-01
2018-09-30
0001493225
us-gaap:AdditionalPaidInCapitalMember
2017-12-31
0001493225
us-gaap:AdditionalPaidInCapitalMember
2018-12-31
0001493225
nfbk:UnallocatedCommonStockHeldByEmployeeStockOwnershipPlanMember
2017-12-31
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-01-01
2019-09-30
0001493225
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-12-31
0001493225
us-gaap:TreasuryStockMember
2017-12-31
0001493225
nfbk:OtherThanMortgageBackedSecuritiesMember
2019-09-30
0001493225
nfbk:RealEstateMortgageInvestmentsConduitsMember
2018-12-31
0001493225
us-gaap:CorporateBondSecuritiesMember
us-gaap:OtherDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
nfbk:PassThroughCertificatesMember
2018-12-31
0001493225
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
nfbk:RealEstateMortgageInvestmentsConduitsMember
2018-12-31
0001493225
us-gaap:OtherDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
nfbk:RealEstateMortgageInvestmentsConduitsMember
2018-12-31
0001493225
us-gaap:USStatesAndPoliticalSubdivisionsMember
us-gaap:OtherDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:USStatesAndPoliticalSubdivisionsMember
us-gaap:MortgagesMember
2019-09-30
0001493225
nfbk:NonPassThroughMember
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
us-gaap:MortgagesMember
2019-09-30
0001493225
nfbk:PassThroughMember
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
nfbk:PassThroughCertificatesMember
2019-09-30
0001493225
us-gaap:CorporateBondSecuritiesMember
us-gaap:MortgagesMember
2019-09-30
0001493225
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
us-gaap:MortgagesMember
2019-09-30
0001493225
nfbk:PassThroughMember
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
us-gaap:MortgagesMember
2019-09-30
0001493225
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
nfbk:RealEstateMortgageInvestmentsConduitsMember
2019-09-30
0001493225
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
nfbk:PassThroughCertificatesMember
2019-09-30
0001493225
us-gaap:CorporateBondSecuritiesMember
us-gaap:OtherDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:OtherDebtSecuritiesMember
2019-09-30
0001493225
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
nfbk:RealEstateMortgageInvestmentsConduitsMember
2019-09-30
0001493225
nfbk:RealEstateMortgageInvestmentsConduitsMember
2019-09-30
0001493225
us-gaap:USStatesAndPoliticalSubdivisionsMember
us-gaap:OtherDebtSecuritiesMember
2019-09-30
0001493225
2018-01-01
2018-06-30
0001493225
2018-04-01
2018-06-30
0001493225
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2018-12-31
0001493225
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2019-09-30
0001493225
nfbk:SmallBusinessAdministrationLoanFundMember
2018-12-31
0001493225
us-gaap:MoneyMarketFundsMember
2018-12-31
0001493225
nfbk:SmallBusinessAdministrationLoanFundMember
2019-09-30
0001493225
us-gaap:MoneyMarketFundsMember
2019-09-30
0001493225
nfbk:CommercialAndIndustrialLoansMember
2019-01-01
2019-09-30
0001493225
us-gaap:CommercialRealEstateMember
2019-01-01
2019-09-30
0001493225
us-gaap:CommercialRealEstateMember
2018-01-01
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2019-09-30
0001493225
nfbk:CommercialAndIndustrialLoansMember
2018-01-01
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:OtherPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:OtherPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-01-01
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-07-01
2019-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-06-30
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2019-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-09-30
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-09-30
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2017-12-31
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2018-01-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
2017-12-31
0001493225
us-gaap:FinancialAssetOriginatedMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-06-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-06-30
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetAcquiredWithCreditDeteriorationMember
2018-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:OtherPortfolioSegmentMember
2018-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-07-01
2018-09-30
0001493225
us-gaap:FinancialAssetOriginatedMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-06-30
0001493225
us-gaap:FinancialAssetAcquiredAndNoCreditDeteriorationMember
2018-06-30
0001493225
us-gaap:FinancialAssetOriginatedMember
2018-06-30
0001493225
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
us-gaap:CommercialRealEstateMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:OtherPortfolioSegmentMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:OtherPortfolioSegmentMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
us-gaap:PassMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:OtherPortfolioSegmentMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
nfbk:OtherPortfolioSegmentMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2019-09-30
0001493225
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
us-gaap:PassMember
2019-09-30
0001493225
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:OtherPortfolioSegmentMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialPortfolioSegmentMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:OtherPortfolioSegmentMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-07-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-01-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-01-01
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2019-01-01
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-07-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-07-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-07-01
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-07-01
2019-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-01-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-01-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-01-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-01-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-01-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-07-01
2018-09-30
0001493225
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2019-07-01
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-01-01
2018-09-30
0001493225
us-gaap:CommercialMortgageBackedSecuritiesMember
2019-01-01
2019-09-30
0001493225
nfbk:OneToFourFamilyResidentialMortgageMember
2019-01-01
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:OtherPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2018-12-31
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
us-gaap:NonperformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
us-gaap:NonperformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
us-gaap:CommercialMortgageBackedSecuritiesMember
2018-07-01
2018-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
us-gaap:NonperformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-12-31
0001493225
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
us-gaap:NonperformingFinancingReceivableMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2018-12-31
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2018-12-31
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:OtherPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:SpecialMentionMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
srt:MultifamilyMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:SpecialMentionMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SpecialMentionMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
us-gaap:SubstandardMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:ConstructionAndLandLoansMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
us-gaap:SubstandardMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:SubstandardMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialLoanMember
nfbk:LessThan35LtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
nfbk:FinancingReceivableRecordedInvestment30To89DaysPastDueMember
us-gaap:PassMember
2019-09-30
0001493225
nfbk:LoansHeldForInvestmentMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
nfbk:LessThan60LtvMember
2019-09-30
0001493225
nfbk:TotalLoansIncludeLoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:NonperformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:PassMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
nfbk:LoansAcquiredMember
us-gaap:PerformingFinancingReceivableMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
us-gaap:FinancingReceivables1To29DaysPastDueMember
nfbk:EqualToOrGreaterThanThirtyFivePercentageLtvMember
2019-09-30
0001493225
2018-01-01
2018-12-31
0001493225
us-gaap:RestrictedStockMember
nfbk:TwoThousandFourteenEquityIncentivePlanMember
2018-01-01
2018-12-31
0001493225
us-gaap:RestrictedStockMember
2019-09-30
0001493225
nfbk:TwoThousandNineteenEquityIncentivePlanMember
2019-05-22
2019-09-30
0001493225
us-gaap:EmployeeStockOptionMember
2019-01-01
2019-09-30
0001493225
nfbk:TwoThousandFourteenEquityIncentivePlanMember
2018-01-01
2018-12-31
0001493225
us-gaap:RestrictedStockMember
2019-01-01
2019-09-30
0001493225
us-gaap:EmployeeStockOptionMember
2019-09-30
0001493225
nfbk:RestrictedStockAndRestrictedStockUnitsRSUsMember
nfbk:TwoThousandNineteenEquityIncentivePlanMember
2019-05-22
0001493225
nfbk:EmployeeStockOptionandStockAppreciationRightsSARsMember
nfbk:TwoThousandNineteenEquityIncentivePlanMember
2019-05-22
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2018-12-31
0001493225
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2018-12-31
0001493225
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2018-12-31
0001493225
nfbk:MeasurementInputDiscountForCostsToSellMember
us-gaap:MarketApproachValuationTechniqueMember
2018-12-31
0001493225
nfbk:MeasurementInputDiscountForCostsToSellMember
us-gaap:MarketApproachValuationTechniqueMember
2019-09-30
0001493225
nfbk:MeasurementInputDiscountForQuickSaleMember
us-gaap:MarketApproachValuationTechniqueMember
2018-12-31
0001493225
nfbk:MeasurementInputDiscountForQuickSaleMember
us-gaap:MarketApproachValuationTechniqueMember
2019-09-30
0001493225
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-09-30
0001493225
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2019-09-30
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
2019-09-30
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
nfbk:OneToFourFamilyResidentialMortgageMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:MortgageBackedSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:HomeEquityMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:CorporateBondSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:OtherDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
us-gaap:CommercialRealEstateMember
2018-12-31
0001493225
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentsponsoredEnterprisesDebtSecuritiesPassThroughCertificatesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:CommercialAndIndustrialPortfolioSegmentMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:USStatesAndPoliticalSubdivisionsMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:USGovernmentSponsoredEnterprisesDebtSecuritiesREMICsMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
nfbk:NonUsGovernmentSponsoredEnterprisesDebtSecuritiesMember
2018-12-31
0001493225
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsNonrecurringMember
nfbk:RealEstatePortfolioSegmentMember
srt:MultifamilyMember
2018-12-31
0001493225
srt:MinimumMember
us-gaap:MeasurementInputDiscountRateMember
us-gaap:ValuationTechniqueDiscountedCashFlowMember
2018-12-31
0001493225
srt:MaximumMember
us-gaap:MeasurementInputDiscountRateMember
us-gaap:ValuationTechniqueDiscountedCashFlowMember
2018-12-31
0001493225
srt:MaximumMember
us-gaap:MeasurementInputDiscountRateMember
us-gaap:ValuationTechniqueDiscountedCashFlowMember
2019-09-30
0001493225
srt:MinimumMember
us-gaap:MeasurementInputDiscountRateMember
us-gaap:ValuationTechniqueDiscountedCashFlowMember
2019-09-30
0001493225
srt:MinimumMember
2019-09-30
0001493225
srt:MaximumMember
2019-09-30
0001493225
us-gaap:InvestmentAdviceMember
2019-01-01
2019-09-30
0001493225
us-gaap:BankServicingMember
2018-01-01
2018-09-30
0001493225
us-gaap:InvestmentAdviceMember
2018-01-01
2018-09-30
0001493225
us-gaap:DebitCardMember
2018-07-01
2018-09-30
0001493225
us-gaap:BankServicingMember
2019-01-01
2019-09-30
0001493225
us-gaap:InvestmentAdviceMember
2018-07-01
2018-09-30
0001493225
us-gaap:InvestmentAdviceMember
2019-07-01
2019-09-30
0001493225
us-gaap:DebitCardMember
2019-07-01
2019-09-30
0001493225
us-gaap:DebitCardMember
2018-01-01
2018-09-30
0001493225
us-gaap:BankServicingMember
2019-07-01
2019-09-30
0001493225
us-gaap:BankServicingMember
2018-07-01
2018-09-30
0001493225
us-gaap:DebitCardMember
2019-01-01
2019-09-30
0001493225
us-gaap:AccountingStandardsUpdate201602Member
2019-01-01
nfbk:security
xbrli:shares
xbrli:pure
iso4217:USD
iso4217:USD
xbrli:shares
nfbk:loan
nfbk:contract
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM
10-Q
☒
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended
September 30, 2019
or
☐
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
For transition period from to
Commission File Number
001-35791
Northfield Bancorp, Inc.
(Exact name of registrant as specified in its charter)
Delaware
80-0882592
(State or other jurisdiction of incorporation or organization)
(I.R.S. Employer Identification No.)
581 Main Street,
Woodbridge,
New Jersey
07095
(Address of principal executive offices)
(Zip Code)
Registrant’s telephone number, including area code: (
732
)
499-7200
Not Applicable
(Former name, former address, and former fiscal year, if changed since last report)
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol
Name of exchange on which registered
Common stock, par value $0.01 per share
NFBK
The NASDAQ Stock Market LLC
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes
☒
No
☐
.
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for shorter period that the registrant was required to submit such files).
Yes
☒
No
☐
.
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer”, “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act:
Large accelerated filer
☒
Accelerated filer
☐
Non-accelerated filer
☐
Smaller reporting company
☐
Emerging growth company
☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes
☐
No
☒
.
As of
October 31, 2019
, the registrant had
49,175,347
shares of Common Stock, par value $0.01 per share, issued and outstanding.
NORTHFIELD BANCORP, INC.
Form 10-Q Quarterly Report
Table of Contents
Page
PART I - FINANCIAL INFORMATION
Item 1.
Financial Statements
4
Item 2.
Management’s Discussion and Analysis of Financial Condition and Results of Operations
45
Item 3.
Quantitative and Qualitative Disclosures About Market Risk
59
Item 4.
Controls and Procedures
61
PART II - OTHER INFORMATION
Item 1.
Legal Proceedings
62
Item 1A.
Risk Factors
62
Item 2.
Unregistered Sales of Equity Securities and Use of Proceeds
62
Item 3.
Defaults Upon Senior Securities
62
Item 4.
Mine Safety Disclosures
62
Item 5.
Other Information
62
Item 6.
Exhibits
63
SIGNATURES
64
3
Table of Contents
PART I
ITEM 1. FINANCIAL STATEMENTS
NORTHFIELD BANCORP, INC.
CONSOLIDATED BALANCE SHEETS
(Unaudited) (In thousands, except share amounts)
September 30,
2019
December 31, 2018
ASSETS:
Cash and due from banks
$
17,487
$
15,147
Interest-bearing deposits in other financial institutions
52,165
62,615
Total cash and cash equivalents
69,652
77,762
Trading securities
10,375
8,968
Debt securities available-for-sale, at estimated fair value
1,059,560
808,031
Debt securities held-to-maturity, at amortized cost
8,817
9,505
(estimated fair value of $8,907 at September 30, 2019, and $9,249 at December 31, 2018)
Equity securities
2,288
1,280
Originated loans held-for-investment, net
2,859,704
2,678,877
Loans acquired
478,009
546,150
Purchased credit-impaired (“PCI”) loans held-for-investment
17,435
20,143
Loans held-for-investment, net
3,355,148
3,245,170
Allowance for loan losses
(
28,066
)
(
27,497
)
Net loans held-for-investment
3,327,082
3,217,673
Accrued interest receivable
13,818
12,959
Bank owned life insurance
154,204
154,135
Federal Home Loan Bank of New York stock, at cost
32,105
22,517
Premises and equipment, net
25,967
25,605
Goodwill
38,411
38,411
Operating lease right-of-use assets
41,228
—
Other assets
24,804
31,586
Total assets
$
4,808,311
$
4,408,432
LIABILITIES AND STOCKHOLDERS’ EQUITY:
LIABILITIES:
Deposits
$
3,337,309
$
3,286,512
Securities sold under agreements to repurchase
75,000
—
Other borrowings
616,161
408,891
Operating lease liabilities
45,196
—
Advance payments by borrowers for taxes and insurance
18,751
18,007
Accrued expenses and other liabilities
25,954
28,583
Total liabilities
4,118,371
3,741,993
STOCKHOLDERS’ EQUITY:
Preferred stock, $0.01 par value; 25,000,000 shares authorized, none issued or outstanding
—
—
Common stock, $0.01 par value: 150,000,000 shares authorized, 60,933,707 shares issued at
September 30, 2019 and December 31, 2018, 49,154,878 and 49,635,673 outstanding at September 30, 2019, and December 31, 2018, respectively
609
609
Additional paid-in-capital
547,835
546,219
Unallocated common stock held by employee stock ownership plan
(
20,236
)
(
20,992
)
Retained earnings
317,592
302,544
Accumulated other comprehensive income (loss)
5,186
(
9,147
)
Treasury stock at cost; 11,778,829 and 11,298,034 shares at September 30, 2019, and December 31, 2018, respectively
(
161,046
)
(
152,794
)
Total stockholders’ equity
689,940
666,439
Total liabilities and stockholders’ equity
$
4,808,311
$
4,408,432
See accompanying notes to unaudited consolidated financial statements.
4
Table of Contents
NORTHFIELD BANCORP, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE
INCOME
(Unaudited) (In thousands, except per share data)
Three Months Ended September 30,
Nine Months Ended September 30,
2019
2018
2019
2018
Interest income:
Loans
$
35,285
$
32,443
$
101,183
$
94,686
Mortgage-backed securities
5,409
3,475
14,082
9,269
Other securities
1,511
1,104
5,075
2,427
Federal Home Loan Bank of New York dividends
396
428
1,138
1,240
Deposits in other financial institutions
246
277
1,028
722
Total interest income
42,847
37,727
122,506
108,344
Interest expense:
Deposits
10,516
7,593
31,312
18,854
Borrowings
3,511
2,210
7,885
6,252
Total interest expense
14,027
9,803
39,197
25,106
Net interest income
28,820
27,924
83,309
83,238
(Recovery) provision for loan losses
(
1,300
)
1,304
(
750
)
2,008
Net interest income after provision for loan losses
30,120
26,620
84,059
81,230
Non-interest income:
Fees and service charges for customer services
1,286
1,241
3,633
3,602
Income on bank owned life insurance
3,268
919
5,071
2,787
Gains on available-for-sale debt securities, net
123
7
337
178
Gains on trading securities, net
28
412
1,457
714
Other
28
58
115
205
Total non-interest income
4,733
2,637
10,613
7,486
Non-interest expense:
Compensation and employee benefits
9,033
9,443
29,890
27,681
Occupancy
3,084
3,015
9,486
9,061
Furniture and equipment
280
239
804
747
Data processing
1,517
1,153
4,217
3,527
Professional fees
938
886
2,496
2,558
Advertising
746
561
2,841
1,815
FDIC insurance
5
241
537
812
Other
1,266
1,562
4,552
5,065
Total non-interest expense
16,869
17,100
54,823
51,266
Income before income tax expense
17,984
12,157
39,849
37,450
Income tax expense
4,845
3,081
9,735
7,318
Net income
$
13,139
$
9,076
$
30,114
$
30,132
Net income per common share:
Basic
$
0.28
$
0.19
$
0.64
$
0.65
Diluted
$
0.28
$
0.19
$
0.64
$
0.64
See accompanying notes to unaudited consolidated financial statements.
5
Table of Contents
NORTHFIELD BANCORP, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE
INCOME - (Continued)
(Unaudited) (In thousands)
Three Months Ended September 30,
Nine Months Ended September 30,
2019
2018
2019
2018
Net Income
$
13,139
$
9,076
$
30,114
$
30,132
Other comprehensive income (loss):
Unrealized gains (losses) on debt securities available-for-sale:
Net unrealized holding gains (losses)
1,549
(
2,674
)
20,242
(
11,117
)
Less: reclassification adjustment for net gains included in net income
(
123
)
(
7
)
(
337
)
(
178
)
Net unrealized gains (losses)
1,426
(
2,681
)
19,905
(
11,295
)
Income tax (expense) benefit related to net unrealized holding gains (losses) on debt securities available-for-sale
(
434
)
748
(
5,666
)
3,117
Income tax benefit related to reclassification adjustment for gains included in net income
34
2
94
50
Other comprehensive income (loss), net of tax
1,026
(
1,931
)
14,333
(
8,128
)
Comprehensive income
$
14,165
$
7,145
$
44,447
$
22,004
See accompanying notes to unaudited consolidated financial statements.
6
Table of Contents
NORTHFIELD BANCORP, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY
Three Months Ended September 30, 2019
and
2018
(Unaudited) (In thousands, except share data)
Common Stock
Shares Outstanding
Par Value
Additional Paid-in Capital
Unallocated Common Stock Held by the Employee Stock Ownership Plan
Retained Earnings
Accumulated Other Comprehensive Income (loss) Net of tax
Treasury Stock
Total Stockholders' Equity
Balance at June 30, 2018
49,481,589
$
609
$
544,404
$
(
21,737
)
$
292,900
$
(
11,648
)
$
(
154,873
)
$
649,655
Net income
9,076
9,076
Other comprehensive loss, net of tax
(
1,931
)
(
1,931
)
ESOP shares allocated or committed to be released
257
258
515
Stock compensation expense
1,370
1,370
Net issuance of restricted stock
11,800
(
156
)
156
—
Exercise of stock options, net
41,681
(
136
)
563
427
Cash dividends declared and paid ($0.10 per common share)
(
4,687
)
(
4,687
)
Repurchase of treasury stock (average cost of $16.85 per share)
(
326
)
(
5
)
(
5
)
Balance at September 30, 2018
49,534,744
$
609
$
545,739
$
(
21,479
)
$
297,289
$
(
13,579
)
$
(
154,159
)
$
654,420
Balance at June 30, 2019
49,112,139
$
609
$
548,197
$
(
20,491
)
$
309,594
$
4,160
$
(
160,976
)
$
681,093
Net income
13,139
13,139
Other comprehensive income, net of tax
1,026
1,026
ESOP shares allocated or committed to be released
231
255
486
Stock compensation expense
425
425
Exercise of stock options, net
407,844
(
1,018
)
5,564
4,546
Cash dividends declared and paid ($0.11 per common share)
(
5,141
)
(
5,141
)
Repurchase of treasury stock (average cost of $15.31 per share)
(
365,105
)
(
5,634
)
(
5,634
)
Balance at September 30, 2019
49,154,878
$
609
$
547,835
$
(
20,236
)
$
317,592
$
5,186
$
(
161,046
)
$
689,940
See accompanying notes to unaudited consolidated financial statements.
7
Table of Contents
NORTHFIELD BANCORP, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY
Nine Months Ended September 30, 2019
and
2018
(Unaudited) (In thousands, except share data)
Common Stock
Shares Outstanding
Par Value
Additional Paid-in Capital
Unallocated Common Stock Held by the Employee Stock Ownership Plan
Retained Earnings
Accumulated Other Comprehensive Income (loss) Net of tax
Treasury Stock
Total Stockholders' Equity
Balance at December 31, 2017
48,803,885
$
609
$
548,864
$
(
22,244
)
$
281,138
$
(
5,451
)
$
(
164,039
)
$
638,877
Net income
30,132
30,132
Other comprehensive loss, net of tax
(
8,128
)
(
8,128
)
ESOP shares allocated or committed to be released
755
765
1,520
Stock compensation expense
4,087
4,087
Net issuance of restricted stock
10,040
(
133
)
133
—
Exercise of stock options, net
721,145
(
7,834
)
9,752
1,918
Cash dividends declared and paid ($0.30 per common share)
(
13,981
)
(
13,981
)
Repurchase of treasury stock (average cost of $16.85 per share)
(
326
)
(
5
)
(
5
)
Balance at September 30, 2018
49,534,744
$
609
$
545,739
$
(
21,479
)
$
297,289
$
(
13,579
)
$
(
154,159
)
$
654,420
Balance at December 31, 2018
49,635,673
$
609
$
546,219
$
(
20,992
)
$
302,544
$
(
9,147
)
$
(
152,794
)
$
666,439
Net income
30,114
30,114
Other comprehensive income, net of tax
14,333
14,333
ESOP shares allocated or committed to be released
623
756
1,379
Stock compensation expense
2,865
2,865
Forfeitures of restricted stock
(
8,000
)
118
(
118
)
—
Exercise of stock options, net
555,805
(
1,990
)
7,565
5,575
Cash dividends declared and paid ($0.33 per common share)
(
15,066
)
(
15,066
)
Repurchase of treasury stock (average cost of $15.23 per share)
(
1,028,600
)
(
15,699
)
(
15,699
)
Balance at September 30, 2019
49,154,878
$
609
$
547,835
$
(
20,236
)
$
317,592
$
5,186
$
(
161,046
)
$
689,940
See accompanying notes to unaudited consolidated financial statements.
8
Table of Contents
NORTHFIELD BANCORP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited) (In thousands)
Nine Months Ended September 30,
2019
2018
Net income
$
30,114
$
30,132
Adjustments to reconcile net income to net cash provided by operating activities:
(Recovery) provision for loan losses
(
750
)
2,008
ESOP and stock compensation expense
4,244
5,607
Depreciation
2,316
2,261
Amortization of premiums, and deferred loan costs, net of (accretion) of discounts, and deferred loan fees
3,118
1,798
Amortization of intangible assets
201
247
Amortization of operating lease right-of-use assets
3,345
—
Accretion of operating lease liabilities
1,223
—
Income on bank owned life insurance
(
5,071
)
(
2,787
)
Gains on available-for-sale debt securities, net
(
337
)
(
178
)
Gains on trading securities, net
(
1,457
)
(
714
)
Net sales (purchases) of trading securities
50
(
359
)
Increase in accrued interest receivable
(
859
)
(
1,271
)
Decrease in other assets
410
2,052
(Decrease) increase in accrued expenses and other liabilities
(
2,630
)
3,323
Net cash provided by operating activities
33,917
42,119
Cash flows from investing activities:
Net increase in loans receivable
(
64,950
)
(
29,891
)
Purchases of loans
(
44,918
)
(
37,593
)
Purchases of Federal Home Loan Bank of New York stock
(
25,901
)
(
14,956
)
Redemptions of Federal Home Loan Bank of New York stock
16,313
16,042
Purchases of debt securities available-for-sale
(
456,535
)
(
359,265
)
Purchases of equity securities
(
1,008
)
—
Principal payments and maturities on debt securities available-for-sale
168,931
88,630
Principal payments and maturities on debt securities held-to-maturity
658
352
Proceeds from sale of debt securities available-for-sale
54,438
32,115
Proceeds from bank owned life insurance
5,002
173
Purchases and improvements of premises and equipment
(
2,678
)
(
1,744
)
Net cash used in investing activities
(
350,648
)
(
305,287
)
Cash flows from financing activities:
Net increase in deposits
50,797
304,289
Dividends paid
(
15,066
)
(
13,981
)
Exercise of stock options
5,575
1,918
Purchase of treasury stock
(
15,699
)
(
5
)
Increase in advance payments by borrowers for taxes and insurance
744
2,201
Repayments under capital lease obligations
(
44
)
(
188
)
Proceeds from securities sold under agreements to repurchase and other borrowings
685,816
397,465
Repayments related to securities sold under agreements to repurchase and other borrowings
(
403,502
)
(
427,635
)
Net cash provided by financing activities
308,621
264,064
Net (decrease) increase in cash and cash equivalents
(
8,110
)
896
Cash and cash equivalents at beginning of period
77,762
57,839
Cash and cash equivalents at end of period
$
69,652
$
58,735
See accompanying notes to unaudited consolidated financial statements.
9
Table of Contents
NORTHFIELD BANCORP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS - (Continued)
(Unaudited) (In thousands)
Nine Months Ended September 30,
2019
2018
Supplemental cash flow information:
Cash paid during the period for:
Interest
$
39,588
$
24,699
Income taxes
6,973
7,767
Non-cash transactions:
Loan (recoveries) charge-offs, net
(
1,319
)
481
Initial recognition of operating lease right-of use assets
43,560
—
Initial recognition of operating lease liabilities
47,328
—
See accompanying notes to unaudited consolidated financial statements.
10
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements
Note 1 –
Basis of Presentation
The consolidated financial statements are comprised of the accounts of Northfield Bancorp, Inc. (the
“
Company
”
) and its wholly owned subsidiaries, Northfield Investments, Inc. and Northfield Bank (the
“
Bank
”
), and the Bank’s wholly-owned significant subsidiaries, NSB Services Corp. and NSB Realty Trust. All significant intercompany accounts and transactions have been eliminated in consolidation.
In the opinion of management, all adjustments (consisting solely of normal and recurring adjustments) necessary for the fair presentation of the consolidated financial condition and the consolidated results of operations for the unaudited periods presented have been included. The results of operations and other data presented for the
three and nine
months ended
September 30, 2019
are not necessarily indicative of the results of operations that may be expected for the year ending
December 31, 2019
or for any other period. Whenever necessary, certain prior year amounts are reclassified to conform to the current year presentation.
In preparing the unaudited consolidated financial statements in conformity with U.S. generally accepted accounting principles (
“
U.S. GAAP
”
), management has made estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated statements of financial condition and results of operations for the periods indicated. Material estimates that are particularly susceptible to change are: the allowance for loan losses, estimated cash flows of our purchased credit-impaired (“PCI”) loans and income taxes. Estimates and assumptions are reviewed periodically and the effects of revisions are reflected in the consolidated financial statements in the period they are deemed necessary. While management uses its best judgment, actual amounts or results could differ significantly from those estimates.
Certain information and note disclosures usually included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (
“
SEC
”
) for the preparation of interim financial statements. The consolidated financial statements presented should be read in conjunction with the audited consolidated financial statements and notes to consolidated financial statements included in the Annual Report on Form 10-K for the year ended
December 31, 2018
, of the Company as filed with the SEC.
Note 2 –
Debt Securities Available-for-Sale
The following is a comparative summary of mortgage-backed and other debt securities available-for-sale at
September 30, 2019
, and
December 31, 2018
(in thousands):
September 30, 2019
Gross
Gross
Estimated
Amortized
unrealized
unrealized
fair
cost
gains
losses
value
Mortgage-backed securities:
Pass-through certificates:
Government sponsored enterprises (GSE)
$
352,730
$
6,189
$
774
$
358,145
Real estate mortgage investment conduits (REMICs):
GSE
515,961
2,522
2,071
516,412
Non-GSE
55
—
—
55
868,746
8,711
2,845
874,612
Other debt securities:
Municipal bonds
220
2
—
222
Corporate bonds
183,459
1,284
17
184,726
183,679
1,286
17
184,948
Total debt securities available-for-sale
$
1,052,425
$
9,997
$
2,862
$
1,059,560
11
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
December 31, 2018
Gross
Gross
Estimated
Amortized
unrealized
unrealized
fair
cost
gains
losses
value
Mortgage-backed securities:
Pass-through certificates:
GSE
$
317,530
$
800
$
3,542
$
314,788
REMICs:
GSE
258,050
92
7,979
250,163
Non-GSE
59
—
1
58
575,639
892
11,522
565,009
Other debt securities:
Municipal bonds
270
3
—
273
Corporate bonds
244,892
72
2,215
242,749
245,162
75
2,215
243,022
Total debt securities available-for-sale
$
820,801
$
967
$
13,737
$
808,031
The following is a summary of the expected maturity distribution of debt securities available-for-sale, other than mortgage-backed securities, at
September 30, 2019
(in thousands):
Available-for-sale
Amortized cost
Estimated fair value
Due in one year or less
$
64,921
$
65,260
Due after one year through five years
118,758
119,688
$
183,679
$
184,948
Contractual maturities for mortgage-backed securities are not included above, as expected maturities on mortgage-backed securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without penalties.
Certain debt securities available-for-sale are pledged or encumbered to secure borrowings under Pledge Agreements and Repurchase Agreements and for other purposes required by law. At
September 30, 2019
, the fair value of debt securities available-for-sale that were pledged to secure borrowings and deposits was
$
554.8
million
.
For the
three and nine
months ended
September 30, 2019
, the Company had gross proceeds of
$
20.0
million
and
$
54.4
million
, respectively, on sales of debt securities available-for-sale, with gross realized gains of
$
123,000
and
$
337,000
, respectively, and
no
gross realized losses. For the three months and nine months ended
September 30, 2018
, the Company had gross proceeds of
$
2.5
million
and
$
32.1
million
, respectively, on sales of debt securities available-for-sale, with gross realized gains of
$
7,000
and
$
183,000
and gross realized losses of
$
0
and
$
5,000
, for the three months and nine months ended
September 30, 2018
, respectively. The Company recognized net gains of
$
28,000
and
$
1.5
million
on its trading securities portfolio during the
three and nine
months ended
September 30, 2019
, respectively, and net gains of
$
412,000
and
$
714,000
, during the three and nine months ended
September 30, 2018
, respectively.
12
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Gross unrealized losses on mortgage-backed and other debt securities available-for-sale, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at
September 30, 2019
, and
December 31, 2018
, were as follows (in thousands):
September 30, 2019
Less than 12 months
12 months or more
Total
Unrealized
Estimated
Unrealized
Estimated
Unrealized
Estimated
losses
fair value
losses
fair value
losses
fair value
Mortgage-backed securities:
Pass-through certificates:
GSE
$
1
$
3,266
$
773
$
59,284
$
774
$
62,550
REMICs:
GSE
78
108,622
1,993
86,271
2,071
194,893
Other debt securities:
Corporate bonds
12
10,571
5
10,049
17
20,620
Total
$
91
$
122,459
$
2,771
$
155,604
$
2,862
$
278,063
December 31, 2018
Less than 12 months
12 months or more
Total
Unrealized
Estimated
Unrealized
Estimated
Unrealized
Estimated
losses
fair value
losses
fair value
losses
fair value
Mortgage-backed securities:
Pass-through certificates:
GSE
$
404
$
82,781
$
3,138
$
100,109
$
3,542
$
182,890
REMICs:
GSE
269
46,921
7,710
181,512
7,979
228,433
Non-GSE
—
—
1
58
1
58
Other debt securities:
Corporate bonds
1,703
173,219
512
25,675
2,215
198,894
Total
$
2,376
$
302,921
$
11,361
$
307,354
$
13,737
$
610,275
The Company held
32
pass-through mortgage-backed securities issued or guaranteed by GSEs,
27
REMIC mortgage-backed securities issued or guaranteed by GSEs,
one
REMIC mortgage-backed security not issued or guaranteed by a GSE, and
two
corporate bonds that were in a continuous unrealized loss position of twelve months or greater at
September 30, 2019
. There were
three
pass-through mortgage-backed securities issued or guaranteed by GSEs,
12
REMIC mortgage-backed securities issued or guaranteed by GSEs, and
three
corporate bonds that were in an unrealized loss position of less than twelve months at
September 30, 2019
. All securities referred to above were rated investment grade at
September 30, 2019
. Management evaluated these securities and concluded that the declines in fair value relate to the general interest rate environment and are considered temporary. The securities cannot be prepaid in a manner that would result in the Company not receiving substantially all of its amortized cost. The Company neither has an intent to sell, nor is it more likely than not that the Company will be required to sell, the securities before the recovery of their amortized cost basis or, if necessary, maturity.
The fair values of our debt securities available-for-sale could decline in the future if the underlying performance of the collateral for the collateralized mortgage obligations or other securities deteriorates and our credit enhancement levels do not provide sufficient protections to our contractual principal and interest, which may result in other-than-temporary impairment in the future. The Company did
no
t recognize any other-than-temporary impairment charges during the
three and nine
months ended
September 30, 2019
, or
September 30, 2018
.
13
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Note 3 –
Debt Securities Held-to-Maturity
The following is a summary of debt securities held-to-maturity at
September 30, 2019
, and
December 31, 2018
(in thousands):
September 30, 2019
Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value
Mortgage-backed securities:
Pass-through certificates:
GSEs
$
8,817
$
103
$
13
$
8,907
Total securities held-to-maturity
$
8,817
$
103
$
13
$
8,907
December 31, 2018
Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value
Mortgage-backed securities:
Pass-through certificates:
GSEs
$
9,505
$
—
$
256
$
9,249
Total securities held-to-maturity
$
9,505
$
—
$
256
$
9,249
Contractual maturities for mortgage-backed securities are not presented, as expected maturities on mortgage‑backed securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without penalties. There were
no
sales of held-to-maturity securities for the
nine months ended
September 30, 2019
, or
September 30, 2018
.
At
September 30, 2019
, debt securities held-to-maturity with a carrying value of
$
6.6
million
were pledged to secure borrowings and deposits.
Gross unrealized losses on mortgage-backed securities held-to-maturity, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at
September 30, 2019
and
December 31, 2018
, were as follows (in thousands):
September 30, 2019
Less than 12 months
12 months or more
Total
Unrealized losses
Estimated fair value
Unrealized losses
Estimated fair value
Unrealized losses
Estimated fair value
Mortgage-backed securities:
Pass-through certificates:
GSEs
$
—
$
—
$
13
$
1,753
$
13
$
1,753
Total securities held-to-maturity
$
—
$
—
$
13
$
1,753
$
13
$
1,753
December 31, 2018
Less than 12 months
12 months or more
Total
Unrealized losses
Estimated fair value
Unrealized losses
Estimated fair value
Unrealized losses
Estimated fair value
Mortgage-backed securities:
Pass-through certificates:
GSEs
$
34
$
2,133
$
222
$
7,116
$
256
$
9,249
Total securities held-to-maturity
$
34
$
2,133
$
222
$
7,116
$
256
$
9,249
14
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The Company held
two
pass-through mortgage-backed securities held-to-maturity, issued or guaranteed by GSEs that were in a continuous unrealized loss position of greater than twelve months at
September 30, 2019
. Management evaluated these securities and concluded that the declines in fair value relate to the general interest rate environment and are considered temporary. The securities cannot be prepaid in a manner that would result in the Company not receiving substantially all of its amortized cost. The Company neither has an intent to sell, nor is it more likely than not that the Company will be required to sell, the securities before the recovery of their amortized cost basis or, if necessary, maturity.
The fair values of our debt securities held-to-maturity could decline in the future if the underlying performance of the collateral for the collateralized mortgage obligations or other securities deteriorates and our credit enhancement levels do not provide sufficient protections to our contractual principal and interest. As a result, there is a risk that significant other-than-temporary impairments may occur in the future given the current economic environment. The Company did
no
t recognize any other-than-temporary impairment charges in earnings on securities held-to-maturity during the
three and nine
months ended
September 30, 2019
, or
September 30, 2018
.
Note 4 –
Equity Securities
At
September 30, 2019
, and
December 31, 2018
, equity securities totaled
$
2.3
million
and
$
1.3
million
, respectively. Equity securities consist of money market mutual funds, recorded at fair value of
$
214,000
and
$
237,000
, at
September 30, 2019
, and
December 31, 2018
, respectively, and an investment in a private Small Business Administration (“SBA”) Loan Fund recorded at net asset value of
$
2.1
million
at
September 30, 2019
, and
$
1.0
million
at
December 31, 2018
. As the SBA Loan Fund operates as a private fund, its shares are not publicly traded and therefore have no readily determinable market value. The investment in the fund is recorded at net asset value as a practical expedient for reporting fair value.
15
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Note 5 –
Loans
Net loans held-for-investment are as follows (in thousands):
September 30,
December 31,
2019
2018
Real estate loans:
Multifamily
$
2,098,307
$
1,930,535
Commercial mortgage
505,621
499,311
One-to-four family residential mortgage
83,646
91,371
Home equity and lines of credit
85,416
78,593
Construction and land
33,221
26,552
Total real estate loans
2,806,211
2,626,362
Commercial and industrial loans
44,140
44,104
Other loans
1,768
1,519
Total commercial and industrial and other loans
45,908
45,623
Deferred loan cost, net
7,585
6,892
Originated loans held-for-investment, net
2,859,704
2,678,877
PCI Loans
17,435
20,143
Loans acquired:
One-to-four family residential mortgage
213,010
225,877
Multifamily
114,263
145,485
Commercial mortgage
124,598
133,263
Home equity and lines of credit
12,961
17,583
Construction and land
3,298
12,003
Total acquired real estate loans
468,130
534,211
Commercial and industrial loans
9,873
11,933
Other loans
6
6
Total loans acquired, net
478,009
546,150
Loans held-for-investment, net
3,355,148
3,245,170
Allowance for loan losses
(
28,066
)
(
27,497
)
Net loans held-for-investment
$
3,327,082
$
3,217,673
There were
no
loans held-for-sale at
September 30, 2019
, or
December 31, 2018
.
PCI loans totaled
$
17.4
million
at
September 30, 2019
, as compared to
$
20.1
million
at
December 31, 2018
. The majority of the PCI loan balance is attributable to those loans acquired as part of a Federal Deposit Insurance Corporation-assisted transaction. The Company accounts for PCI loans utilizing U.S. GAAP applicable to loans acquired with deteriorated credit quality. At
September 30, 2019
, PCI loans consist of approximately
30
%
commercial real estate loans and
42
%
commercial and industrial loans, with the remaining balance in residential and home equity loans. At
December 31, 2018
, PCI loans consist of approximately
27
%
commercial real estate loans and
50
%
commercial and industrial loans, with the remaining balance in residential and home equity loans.
The following table details the accretion of interest income for PCI loans for the
three and nine
months ended
September 30, 2019
and
September 30, 2018
(in thousands):
At or for the three months ended September 30,
At or for the nine months ended September 30,
2019
2018
2019
2018
Balance at the beginning of period
$
19,794
$
22,386
$
21,846
$
24,502
Accretion into interest income
(
1,059
)
(
1,025
)
(
3,111
)
(
3,141
)
Balance at end of period
$
18,735
$
21,361
$
18,735
$
21,361
16
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The following tables set forth activity in our allowance for loan losses, by loan type, as of and for the
three and nine
months ended
September 30, 2019
, and
September 30, 2018
(in thousands):
Three Months Ended September 30, 2019
Real Estate
Commercial
One-to-Four Family
Construction and Land
Multifamily
Home Equity and Lines of Credit
Commercial and Industrial
Other
Originated Loans Total
Purchased Credit-Impaired
Acquired Loans
Total
Allowance for loan losses:
Beginning balance
$
5,331
$
234
$
584
$
18,384
$
417
$
1,591
$
146
$
26,687
$
1,010
$
135
$
27,832
Charge-offs
(
514
)
—
—
—
—
—
—
(
514
)
—
—
(
514
)
Recoveries
60
—
—
1,818
—
17
—
1,895
—
153
2,048
Provisions (credit)
(
8
)
(
17
)
(
192
)
(
799
)
(
103
)
(
9
)
(
19
)
(
1,147
)
—
(
153
)
(
1,300
)
Ending balance
$
4,869
$
217
$
392
$
19,403
$
314
$
1,599
$
127
$
26,921
$
1,010
$
135
$
28,066
Three Months Ended September 30, 2018
Real Estate
Commercial
One-to-Four Family
Construction and Land
Multifamily
Home Equity and Lines of Credit
Commercial and Industrial
Other
Originated Loans Total
Purchased Credit-Impaired
Acquired Loans
Total
Allowance for loan losses:
Beginning balance
$
5,718
$
384
$
438
$
17,603
$
279
$
1,402
$
107
$
25,931
$
951
$
—
$
26,882
Charge-offs
(
444
)
—
—
—
—
(
72
)
(
1
)
(
517
)
—
—
(
517
)
Recoveries
12
—
—
—
—
—
—
12
—
6
18
Provisions (credit)
1,165
8
28
(
323
)
(
39
)
482
(
11
)
1,310
—
(
6
)
1,304
Ending balance
$
6,451
$
392
$
466
$
17,280
$
240
$
1,812
$
95
$
26,736
$
951
$
—
$
27,687
17
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Nine Months Ended September 30, 2019
Real Estate
Commercial
One-to-Four Family
Construction and Land
Multifamily
Home Equity and Lines of Credit
Commercial and Industrial
Other
Originated Loans Total
Purchased Credit-Impaired
Acquired Loans
Total
Allowance for loan losses:
Beginning balance
$
5,630
$
342
$
463
$
18,084
$
291
$
1,569
$
108
$
26,487
$
1,010
$
—
$
27,497
Charge-offs
(
520
)
—
—
—
—
(
83
)
(
123
)
(
726
)
—
(
112
)
(
838
)
Recoveries
85
72
—
1,818
—
17
1
1,993
—
164
2,157
Provisions (credit)
(
326
)
(
197
)
(
71
)
(
499
)
23
96
141
(
833
)
—
83
(
750
)
Ending balance
$
4,869
$
217
$
392
$
19,403
$
314
$
1,599
$
127
$
26,921
$
1,010
$
135
$
28,066
Nine Months Ended September 30, 2018
Real Estate
Commercial
One-to-Four Family
Construction and Land
Multifamily
Home Equity and Lines of Credit
Commercial and Industrial
Other
Originated Loans Total
Purchased Credit-Impaired
Acquired Loans
Total
Allowance for loan losses:
Beginning balance
$
5,196
$
503
$
610
$
17,374
$
122
$
1,273
$
94
$
25,172
$
951
$
37
$
26,160
Charge-offs
(
447
)
—
—
—
(
60
)
(
72
)
1
(
578
)
—
(
1
)
(
579
)
Recoveries
37
3
—
26
—
20
—
86
—
12
98
Provisions (credit)
1,665
(
114
)
(
144
)
(
120
)
178
591
—
2,056
—
(
48
)
2,008
Ending balance
$
6,451
$
392
$
466
$
17,280
$
240
$
1,812
$
95
$
26,736
$
951
$
—
$
27,687
18
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The following tables detail the amount of loans receivable held-for-investment, net of deferred loan fees and costs, that are evaluated individually, and collectively, for impairment, and the related portion of the allowance for loan losses that is allocated to each loan portfolio segment, at
September 30, 2019
, and
December 31, 2018
(in thousands):
September 30, 2019
Real Estate
Commercial
One-to-Four Family
Construction and Land
Multifamily
Home Equity and Lines of Credit
Commercial and Industrial
Other
Originated Loans Total
Purchased Credit-Impaired
Acquired Loans
Total
Allowance for loan losses:
Ending balance: individually evaluated for impairment
$
—
$
1
$
—
$
—
$
3
$
4
$
—
$
8
$
—
$
135
$
143
Ending balance: collectively evaluated for impairment
$
4,869
$
216
$
392
$
19,403
$
311
$
1,595
$
127
$
26,913
$
1,010
$
—
$
27,923
Loans, net:
Ending balance
$
505,409
$
86,083
$
33,240
$
2,101,628
$
87,335
$
44,240
$
1,769
$
2,859,704
$
17,435
$
478,009
$
3,355,148
Ending balance: individually evaluated for impairment
$
13,364
$
1,833
$
—
$
1,002
$
56
$
61
$
—
$
16,316
$
—
$
4,802
$
21,118
Ending balance: collectively evaluated for impairment
$
492,045
$
84,250
$
33,240
$
2,100,626
$
87,279
$
44,179
$
1,769
$
2,843,388
$
17,435
$
473,207
$
3,334,030
December 31, 2018
Real Estate
Commercial
One-to-Four Family
Construction and Land
Multifamily
Home Equity and Lines of Credit
Commercial and Industrial
Other
Originated Loans Total
Purchased Credit-Impaired
Acquired Loans
Total
Allowance for loan losses:
Ending balance: individually evaluated for impairment
$
—
$
18
$
—
$
—
$
5
$
3
$
—
$
26
$
—
$
—
$
26
Ending balance: collectively evaluated for impairment
$
5,630
$
324
$
463
$
18,084
$
286
$
1,566
$
108
$
26,461
$
1,010
$
—
$
27,471
Loans, net:
Ending balance
$
499,860
$
92,433
$
26,613
$
1,933,946
$
80,315
$
44,190
$
1,520
$
2,678,877
$
20,143
$
546,150
$
3,245,170
Ending balance: individually evaluated for impairment
$
15,252
$
1,893
$
—
$
1,268
$
61
$
73
$
—
$
18,547
$
—
$
3,782
$
22,329
Ending balance: collectively evaluated for impairment
$
484,608
$
90,540
$
26,613
$
1,932,678
$
80,254
$
44,117
$
1,520
$
2,660,330
$
20,143
$
542,368
$
3,222,841
19
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The Company monitors the credit quality of its loan portfolio on a regular basis. Credit quality is monitored by reviewing certain credit quality indicators. Management has determined that loan-to-value ratios (at period end) and internally assigned credit risk ratings by loan type are the key credit quality indicators that best measure the credit quality of the Company’s loan receivables. Loan-to-value (
“LTV”
) ratios used by management in monitoring credit quality are based on current period loan balances and original appraised values at time of origination (unless a current appraisal has been obtained as a result of the loan being deemed impaired). In calculating the provision for loan losses, based on past loan loss experience, management has determined that commercial real estate loans and multifamily loans having loan-to-value ratios, as described above, of less than
35
%
, and one-to-four family loans having loan-to-value ratios, as described above, of less than
60
%
, require less of a loss factor than those with higher loan to value ratios.
The Company maintains a credit risk rating system as part of the risk assessment of its loan portfolio. The Company’s lending officers are required to assign a credit risk rating to each loan in their portfolio at origination. This risk rating is reviewed periodically and adjusted if necessary. Monthly, management presents monitored assets to the loan committee. In addition, the Company engages a third-party independent loan reviewer that performs semi-annual reviews of a sample of loans, validating the credit risk ratings assigned to such loans. The credit risk ratings play an important role in the establishment of the provision for loan losses and the allowance for loan losses for originated loans held-for-investment. After determining the loss factor for each originated portfolio segment held-for-investment, the collectively evaluated for impairment balance of the held-for-investment portfolio is multiplied by the collectively evaluated for impairment loss factor for the respective portfolio segment in order to determine the allowance for loans collectively evaluated for impairment.
When assigning a risk rating to a loan, management utilizes the Bank’s internal nine-point credit risk rating system.
1.
Strong
2.
Good
3.
Acceptable
4.
Adequate
5.
Watch
6.
Special Mention
7.
Substandard
8.
Doubtful
9.
Loss
Loans rated 1 to 5 are considered pass ratings. An asset is classified substandard if it is inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Substandard assets have well defined weaknesses based on objective evidence, and are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Assets classified as doubtful have all of the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses present make collection or liquidation in full highly questionable and improbable based on current circumstances. Assets classified as loss are those considered uncollectible and of such little value that their continuance as assets is not warranted. Assets which do not currently expose the Company to sufficient risk to warrant classification in one of the aforementioned categories, but possess weaknesses, are required to be designated special mention.
20
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The following tables detail the recorded investment of originated loans held-for-investment, net of deferred fees and costs, by loan type and credit quality indicator at
September 30, 2019
, and
December 31, 2018
(in thousands):
At September 30, 2019
Real Estate
Multifamily
Commercial
One-to-Four Family
Construction and Land
Home Equity and Lines of Credit
Commercial and Industrial
Other
Total
< 35% LTV
=> 35% LTV
< 35% LTV
=> 35% LTV
< 60% LTV
=> 60% LTV
Internal Risk Rating
Pass
$
211,949
$
1,883,237
$
79,656
$
416,509
$
52,432
$
30,325
$
33,240
$
87,065
$
43,815
$
1,769
$
2,839,997
Special Mention
—
894
375
1,103
785
—
—
17
341
—
3,515
Substandard
304
5,244
10
8,556
1,409
332
—
253
84
—
16,192
Originated loans held-for-investment, net
$
212,253
$
1,889,375
$
80,041
$
426,168
$
54,626
$
30,657
$
33,240
$
87,335
$
44,240
$
1,769
$
2,859,704
At December 31, 2018
Real Estate
Multifamily
Commercial
One-to-Four Family
Construction and Land
Home Equity and Lines of Credit
Commercial and Industrial
Other
Total
< 35% LTV
=> 35% LTV
< 35% LTV
=> 35% LTV
< 60% LTV
=> 60% LTV
Internal Risk Rating
Pass
$
170,832
$
1,756,882
$
78,917
$
409,155
$
54,912
$
34,808
$
26,613
$
80,077
$
43,640
$
1,520
$
2,657,356
Special Mention
—
613
395
1,137
747
—
—
27
430
—
3,349
Substandard
—
5,619
—
10,256
1,406
560
—
211
120
—
18,172
Originated loans held-for-investment, net
$
170,832
$
1,763,114
$
79,312
$
420,548
$
57,065
$
35,368
$
26,613
$
80,315
$
44,190
$
1,520
$
2,678,877
21
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Included in loans receivable are loans for which the accrual of interest income has been discontinued due to deterioration in the financial condition of the borrowers. The recorded investment of these non-accrual loans was
$
9.8
million
and
$
9.2
million
at
September 30, 2019
, and
December 31, 2018
, respectively. Generally, loans are placed on non-accrual status when they become
90
days
or more delinquent, or sooner if considered appropriate by management, and remain on non-accrual status until they are brought current, have six consecutive months of performance under the loan terms, and factors indicating reasonable doubt about the timely collection of payments no longer exist. Therefore, loans may be current in accordance with their loan terms, or may be less than
90
days
delinquent and still be on a non-accruing status.
These non-accrual amounts included loans deemed to be impaired of
$
6.8
million
and
$
5.9
million
at
September 30, 2019
, and
December 31, 2018
, respectively. Loans on non-accrual status with principal balances less than
$
500,000
, and therefore not meeting the Company’s definition of an impaired loan, amounted to
$
3.0
million
at
September 30, 2019
and
$
3.2
million
at
December 31, 2018
. There were
no
non-accrual loans held-for-sale at both
September 30, 2019
and
December 31, 2018
. Loans past due
90
days
or more and still accruing interest were
$
596,000
at
September 30, 2019
and
$
33,000
at
December 31, 2018
, and consisted of loans that are considered well-secured and in the process of collection.
22
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The following tables set forth the detail, and delinquency status, of non-performing loans (non-accrual loans and loans past due
90
days or more and still accruing), net of deferred fees and costs, at
September 30, 2019
, and
December 31, 2018
, excluding PCI loans which have been segregated into pools. For PCI loans, each loan pool is accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows (in thousands):
September 30, 2019
Total Non-Performing Loans
Non-Accruing Loans
0-29 Days Past Due
30-89 Days Past Due
90 Days or More Past Due
Total
90 Days or More Past Due and Accruing
Total Non-Performing Loans
Loans held-for-investment:
Real estate loans:
Commercial
LTV < 35%
Substandard
$
—
$
—
$
—
$
—
$
10
$
10
Total
—
—
—
—
10
10
LTV => 35%
Substandard
229
—
2,416
2,645
—
2,645
Total commercial
229
—
2,416
2,645
10
2,655
One-to-four family residential
LTV < 60%
Substandard
189
228
77
494
—
494
Total
189
228
77
494
—
494
LTV => 60%
Substandard
30
—
—
30
—
30
Total one-to-four family residential
219
228
77
524
—
524
Home equity and lines of credit
Pass
—
—
—
—
37
37
Substandard
69
—
51
120
—
120
Total home equity and lines of credit
69
—
51
120
37
157
Total non-performing loans held-for-investment, originated
517
228
2,544
3,289
47
3,336
Loans acquired:
Real estate loans:
Commercial
LTV < 35%
Substandard
81
—
189
270
67
337
LTV => 35%
Substandard
2,842
714
1,840
5,396
476
5,872
Total commercial
2,923
714
2,029
5,666
543
6,209
One-to-four family residential
LTV < 60%
Substandard
—
193
85
278
6
284
LTV => 60%
Substandard
—
—
93
93
—
93
Total one-to-four family residential
—
193
178
371
6
377
Multifamily
LTV < 35%
Substandard
41
—
—
41
—
41
LTV => 35%
Substandard
—
403
—
403
—
403
Total multifamily
41
403
—
444
—
444
Home equity and lines of credit - Substandard
—
—
28
28
—
28
Total non-performing loans acquired
2,964
1,310
2,235
6,509
549
7,058
Total non-performing loans
$
3,481
$
1,538
$
4,779
$
9,798
$
596
$
10,394
23
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
December 31, 2018
Total Non-Performing Loans
Non-Accruing Loans
0-29 Days Past Due
30-89 Days Past Due
90 Days or More Past Due
Total
90 Days or More Past Due and Accruing
Total Non-Performing Loans
Loans held-for-investment:
Real estate loans:
Commercial
LTV => 35%
Substandard
$
—
$
287
$
2,588
$
2,875
$
—
$
2,875
Total commercial
—
287
2,588
2,875
—
2,875
One-to-four family residential
LTV < 60%
Substandard
—
432
77
509
—
509
LTV => 60%
Substandard
—
32
—
32
—
32
Total one-to-four family residential
—
464
77
541
—
541
Home equity and lines of credit
Substandard
75
—
—
75
—
75
Total home equity and lines of credit
75
—
—
75
—
75
Commercial and industrial loans
Substandard
—
—
25
25
—
25
Total commercial and industrial loans
—
—
25
25
—
25
Total non-performing loans held-for-investment, originated
75
751
2,690
3,516
—
3,516
Loans acquired:
Real estate loans:
Commercial
LTV < 35%
Substandard
87
—
194
281
—
281
LTV => 35%
Substandard
—
764
3,371
4,135
—
4,135
Total commercial
87
764
3,565
4,416
—
4,416
One-to-four family residential
LTV < 60%
Substandard
—
199
169
368
6
374
LTV => 60%
Substandard
126
—
93
219
27
246
Total one-to-four family residential
126
199
262
587
33
620
Multifamily
LTV < 35%
Substandard
152
—
—
152
—
152
LTV => 35%
Substandard
—
414
—
414
—
414
Total multifamily
152
414
—
566
—
566
Home equity and lines of credit
Substandard
—
—
77
77
—
77
Total home equity and lines of credit
—
—
77
77
—
77
Total non-performing loans acquired
365
1,377
3,904
5,646
33
5,679
Total non-performing loans
$
440
$
2,128
$
6,594
$
9,162
$
33
$
9,195
24
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The following tables set forth the detail and delinquency status of originated and acquired loans held-for-investment, net of deferred fees and costs, by performing and non-performing loans at
September 30, 2019
, and
December 31, 2018
(in thousands):
September 30, 2019
Performing (Accruing) Loans
0-29 Days Past Due
30-89 Days Past Due
Total
Non-Performing Loans
Total Loans Receivable, net
Loans held-for-investment:
Real estate loans:
Commercial
LTV < 35%
Pass
$
79,656
$
—
$
79,656
$
—
$
79,656
Special Mention
375
—
375
—
375
Substandard
—
—
—
10
10
Total
80,031
—
80,031
10
80,041
LTV => 35%
Pass
416,509
—
416,509
—
416,509
Special Mention
1,103
—
1,103
—
1,103
Substandard
5,912
—
5,912
2,644
8,556
Total
423,524
—
423,524
2,644
426,168
Total commercial
503,555
—
503,555
2,654
506,209
One-to-four family residential
LTV < 60%
Pass
52,092
340
52,432
—
52,432
Special Mention
—
785
785
—
785
Substandard
574
341
915
494
1,409
Total
52,666
1,466
54,132
494
54,626
LTV => 60%
Pass
30,325
—
30,325
—
30,325
Substandard
302
—
302
30
332
Total
30,627
—
30,627
30
30,657
Total one-to-four family residential
83,293
1,466
84,759
524
85,283
Construction and land
Pass
33,240
—
33,240
—
33,240
Total construction and land
33,240
—
33,240
—
33,240
Multifamily
LTV < 35%
Pass
211,949
—
211,949
—
211,949
Substandard
304
—
304
—
304
Total
212,253
—
212,253
—
212,253
LTV => 35%
Pass
1,882,806
431
1,883,237
—
1,883,237
Special Mention
894
—
894
—
894
Substandard
5,244
—
5,244
—
5,244
Total
1,888,944
431
1,889,375
—
1,889,375
Total multifamily
2,101,197
431
2,101,628
—
2,101,628
Home equity and lines of credit
Pass
87,014
13
87,027
38
87,065
Special Mention
17
—
17
—
17
Substandard
133
—
133
120
253
Total home equity and lines of credit
87,164
13
87,177
158
87,335
Commercial and industrial
Pass
43,727
88
43,815
—
43,815
Special Mention
341
—
341
—
341
Substandard
84
—
84
—
84
Total commercial and industrial
44,152
88
44,240
—
44,240
25
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
September 30, 2019
Performing (Accruing) Loans (Continued)
0-29 Days Past Due
30-89 Days Past Due
Total
Non-Performing Loans
Total Loans Receivable, net
Other loans - Pass
1,761
8
1,769
—
1,769
Total originated loans held-for-investment
2,854,362
2,006
2,856,368
3,336
2,859,704
Acquired loans:
Real estate loans:
One-to-four family residential
LTV < 60%
Pass
195,958
380
196,338
—
196,338
Special Mention
—
389
389
—
389
Substandard
—
—
—
284
284
Total
195,958
769
196,727
284
197,011
LTV => 60%
Pass
15,906
—
15,906
—
15,906
Substandard
—
—
—
93
93
Total
15,906
—
15,906
93
15,999
Total one-to-four family residential
211,864
769
212,633
377
213,010
Commercial
LTV < 35%
Pass
39,062
—
39,062
—
39,062
Special Mention
1,194
—
1,194
—
1,194
Substandard
378
188
566
338
904
Total
40,634
188
40,822
338
41,160
LTV => 35%
Pass
66,845
54
66,899
—
66,899
Special Mention
3,614
123
3,737
—
3,737
Substandard
4,821
2,110
6,931
5,871
12,802
Total
75,280
2,287
77,567
5,871
83,438
Total commercial
115,914
2,475
118,389
6,209
124,598
Construction and land
Pass
3,298
—
3,298
—
3,298
Total construction and land
3,298
—
3,298
—
3,298
Multifamily
LTV < 35%
Pass
111,142
—
111,142
—
111,142
Special Mention
3
—
3
—
3
Substandard
—
—
—
41
41
Total
111,145
—
111,145
41
111,186
LTV => 35%
Pass
2,674
—
2,674
—
2,674
Substandard
—
—
—
403
403
Total
2,674
—
2,674
403
3,077
Total multifamily
113,819
—
113,819
444
114,263
Home equity and lines of credit
Pass
12,743
98
12,841
—
12,841
Substandard
92
—
92
28
120
Total home equity and lines of credit
12,835
98
12,933
28
12,961
Commercial and industrial
Pass
9,873
—
9,873
—
9,873
Total commercial and industrial
9,873
—
9,873
—
9,873
Other loans - Pass
6
—
6
—
6
Total loans acquired
467,609
3,342
470,951
7,058
478,009
$
3,321,971
$
5,348
$
3,327,319
$
10,394
$
3,337,713
26
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
December 31, 2018
Performing (Accruing) Loans
0-29 Days Past Due
30-89 Days Past Due
Total
Non-Performing Loans
Total Loans Receivable, net
Loans held-for-investment:
Real estate loans:
Commercial
LTV < 35%
Pass
$
78,699
$
218
$
78,917
—
$
78,917
Special Mention
—
395
395
—
395
Total
78,699
613
79,312
—
79,312
LTV => 35%
Pass
408,830
325
409,155
—
409,155
Special Mention
1,137
—
1,137
—
1,137
Substandard
7,381
—
7,381
2,875
10,256
Total
417,348
325
417,673
2,875
420,548
Total commercial
496,047
938
496,985
2,875
499,860
One-to-four family residential
LTV < 60%
Pass
54,576
336
54,912
—
54,912
Special Mention
—
747
747
—
747
Substandard
896
—
896
510
1,406
Total
55,472
1,083
56,555
510
57,065
LTV => 60%
Pass
34,576
232
34,808
—
34,808
Substandard
528
—
528
32
560
Total
35,104
232
35,336
32
35,368
Total one-to-four family residential
90,576
1,315
91,891
542
92,433
Construction and land
Pass
26,613
—
26,613
—
26,613
Total construction and land
26,613
—
26,613
—
26,613
Multifamily
LTV < 35%
Pass
170,534
298
170,832
—
170,832
Total
170,534
298
170,832
—
170,832
LTV => 35%
Pass
1,756,443
439
1,756,882
—
1,756,882
Special Mention
613
—
613
—
613
Substandard
4,390
1,229
5,619
—
5,619
Total
1,761,446
1,668
1,763,114
—
1,763,114
Total multifamily
1,931,980
1,966
1,933,946
—
1,933,946
Home equity and lines of credit
Pass
80,077
—
80,077
—
80,077
Special Mention
27
—
27
—
27
Substandard
137
—
137
74
211
Total home equity and lines of credit
80,241
—
80,241
74
80,315
Commercial and industrial loans
Pass
43,640
—
43,640
—
43,640
Special Mention
430
—
430
—
430
Substandard
95
—
95
25
120
Total commercial and industrial loans
44,165
—
44,165
25
44,190
Other loans - Pass
1,518
2
1,520
—
1,520
Total originated loans held-for-investment
$
2,671,140
$
4,221
$
2,675,361
$
3,516
$
2,678,877
27
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
December 31, 2018
Performing (Accruing) Loans
0-29 Days Past Due
30-89 Days Past Due
Total
Non-Performing Loans
Total Loans Receivable, net
Loans Acquired
Real estate loans:
One-to-four family residential
LTV < 60%
Pass
202,471
2,799
205,270
—
205,270
Special Mention
415
—
415
—
415
Substandard
62
6
68
374
442
Total
202,948
2,805
205,753
374
206,127
LTV => 60%
Pass
19,504
—
19,504
—
19,504
Substandard
—
—
—
246
246
Total
19,504
—
19,504
246
19,750
Total one-to-four family residential
222,452
2,805
225,257
620
225,877
Commercial
LTV < 35%
Pass
41,071
—
41,071
—
41,071
Special Mention
1,079
—
1,079
—
1,079
Substandard
1,185
151
1,336
281
1,617
Total
43,335
151
43,486
281
43,767
LTV => 35%
Pass
73,986
749
74,735
—
74,735
Special Mention
4,315
128
4,443
—
4,443
Substandard
5,772
411
6,183
4,135
10,318
Total
84,073
1,288
85,361
4,135
89,496
Total commercial
127,408
1,439
128,847
4,416
133,263
Construction and land
Pass
12,003
—
12,003
—
12,003
Total construction and land
12,003
—
12,003
—
12,003
Multifamily
LTV < 35%
Pass
137,141
—
137,141
—
137,141
Special Mention
—
52
52
—
52
Substandard
—
—
—
152
152
Total
137,141
52
137,193
152
137,345
LTV => 35%
Pass
7,726
—
7,726
—
7,726
Substandard
—
—
—
414
414
Total
7,726
—
7,726
414
8,140
Total multifamily
144,867
52
144,919
566
145,485
Home equity and lines of credit
Pass
17,427
—
17,427
—
17,427
Substandard
79
—
79
77
156
Total home equity and lines of credit
17,506
—
17,506
77
17,583
Commercial and industrial loans
Pass
11,888
45
11,933
—
11,933
Total commercial and industrial loans
11,888
45
11,933
—
11,933
Other
6
—
6
—
6
Total loans acquired
536,130
4,341
540,471
5,679
546,150
$
3,207,270
$
8,562
$
3,215,832
$
9,195
$
3,225,027
28
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The following table summarizes originated and acquired impaired loans as of
September 30, 2019
, and
December 31, 2018
(in thousands):
September 30, 2019
December 31, 2018
Recorded Investment
Unpaid Principal Balance
Related Allowance
Recorded Investment
Unpaid Principal Balance
Related Allowance
With No Allowance Recorded:
Real estate loans:
Commercial
LTV < 35%
Substandard
$
—
$
139
$
—
$
—
$
139
$
—
LTV => 35%
Pass
5,671
6,557
—
5,931
6,817
—
Substandard
10,503
11,067
—
12,160
15,028
—
One-to-four family residential
LTV < 60%
Pass
1,394
1,476
—
1,532
1,606
—
Special Mention
389
389
—
—
—
—
Substandard
228
228
—
241
241
—
LTV => 60%
Pass
124
155
—
129
158
—
Substandard
—
—
—
126
278
—
Multifamily
LTV < 35%
Substandard
41
41
—
152
152
—
LTV => 35%
Pass
29
500
—
38
509
—
Substandard
973
973
—
1,229
1,229
—
Home equity and lines of credit
Pass
23
23
—
28
28
—
Commercial and industrial loans
Substandard
42
42
—
52
119
—
With a Related Allowance
Recorded:
Real estate loans:
Commercial
LTV => 35%
Substandard
1,308
1,308
(
135
)
—
—
—
One-to-four family residential
LTV < 60%
Substandard
341
341
(
1
)
657
657
(
18
)
Home equity and lines of credit
Substandard
33
33
(
3
)
33
33
(
5
)
Commercial and industrial loans
Special Mention
19
19
(
4
)
21
21
(
3
)
Total:
Real estate loans
Commercial
17,482
19,071
(
135
)
18,091
21,984
—
One-to-four family residential
2,476
2,589
(
1
)
2,685
2,940
(
18
)
Multifamily
1,043
1,514
—
1,419
1,890
—
Home equity and lines of credit
56
56
(
3
)
61
61
(
5
)
Commercial and industrial loans
61
61
(
4
)
73
140
(
3
)
$
21,118
$
23,291
$
(
143
)
$
22,329
$
27,015
$
(
26
)
29
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Included in the above table at
September 30, 2019
, are impaired loans with carrying balances of
$
15.6
million
that were not written down by charge-offs or for which there are no specific reserves in our allowance for loan losses. Included in impaired loans at
December 31, 2018
, are loans with carrying balances of
$
16.6
million
that were not written down by charge-offs or for which there are no specific reserves in our allowance for loan losses. Loans not written down by charge-offs or specific reserves at
September 30, 2019
, and
December 31, 2018
, are considered to have sufficient collateral values, less costs to sell, to support the carrying balances of the loans.
The following table summarizes the average recorded investment in originated and acquired impaired loans (excluding PCI loans) and interest recognized on impaired loans as of, and for, the three and
nine months ended September 30, 2019
, and
September 30, 2018
(in thousands):
30
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Three Months Ended
Nine Months Ended
September 30, 2019
September 30, 2018
September 30, 2019
September 30, 2018
Average Recorded Investment
Interest Income
Average Recorded Investment
Interest Income
Average Recorded Investment
Interest Income
Average Recorded Investment
Interest Income
With No Allowance Recorded:
Real estate loans:
Commercial
LTV => 35%
Pass
$
5,714
$
78
$
4,601
$
64
$
5,801
$
236
$
5,040
$
193
Substandard
10,707
54
10,657
184
11,156
183
10,187
334
One-to-four family residential
LTV < 60%
Pass
1,599
16
1,559
13
1,638
49
1,371
40
Special Mention
195
6
—
—
97
17
—
—
Substandard
233
4
243
4
236
8
247
9
LTV => 60%
Pass
124
1
132
1
126
3
200
6
Substandard
62
1
126
6
101
7
130
9
Multifamily
LTV < 35%
Substandard
41
—
152
4
71
1
152
5
LTV => 35%
Pass
30
4
43
4
34
12
361
12
Substandard
974
13
1,230
22
1,101
48
926
49
Home equity and lines of credit
Pass
24
—
30
—
26
1
31
1
Commercial and industrial loans
Substandard
44
—
92
—
47
—
113
—
With a Related Allowance Recorded:
Real estate loans:
Commercial
LTV => 35%
Pass
—
—
1,457
19
—
—
1,100
58
Substandard
1,566
—
668
—
912
17
334
—
One-to-four family residential
LTV < 60%
Pass
—
—
2
—
—
205
5
Substandard
342
5
667
4
422
14
752
13
LTV => 60%
Pass
—
—
—
—
—
—
67
—
Home equity and lines of credit
Substandard
33
—
34
1
33
1
35
1
Commercial and industrial loans
Special Mention
20
—
22
—
20
1
23
1
Total:
Real estate loans
Commercial
17,987
132
17,383
267
17,869
436
16,661
585
One-to-four family residential
2,555
33
2,727
30
2,620
98
2,972
82
Multifamily
1,045
17
1,425
30
1,206
61
1,439
66
Home equity and lines of credit
57
—
64
1
59
2
66
2
Commercial and industrial loans
64
—
114
—
67
1
136
1
$
21,708
$
182
$
21,713
$
328
$
21,821
$
598
$
21,274
$
736
31
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
There were
no
loans modified as troubled debt restructurings (TDRs) during the three months ended
September 30, 2019
. There were
two
loans modified as TDR's during the nine months ended September 30, 2019, both of which were modified to restructure payment terms.
The following table summarizes loans that were modified in a TDR during the nine months ended
September 30, 2019
:
Nine Months Ended September 30, 2019
Number of Relationships
Pre-Modification Outstanding Recorded Investment
Post-Modification Outstanding Recorded Investment
(1)
(in thousands)
Troubled Debt Restructurings
Consumer
1
$
2
$
2
Commercial real estate
1
2,834
2,834
Total Troubled Debt Restructurings
2
$
2,836
$
2,836
(1)
Amounts are at time of modification
There was
one
one-to-four family residential loan modified as a TDR during the three and nine months ended
September 30, 2018
.
This loan had a pre- and post-modification balance of
$
6,400
as of the date of modification, and was restructured to receive a reduced interest rate.
At
September 30, 2019
, and
December 31, 2018
, we had TDRs of
$
18.7
million
and
$
16.9
million
, respectively.
Management classifies all TDR's as impaired loans. Impaired loans are individually assessed to determine that the loan’s carrying value is not in excess of the estimated fair value of the collateral less cost to sell, if the loan is collateral dependent, or the present value of the expected future cash flows, if the loan is not collateral dependent. Management performs an evaluation of each impaired loan and generally obtains updated appraisals as part of the evaluation. In addition, management adjusts estimated fair values down to appropriately consider recent market conditions, our willingness to accept a lower sales price to effect a quick sale, and costs to dispose of any supporting collateral. Determining the estimated fair value of underlying collateral (and related costs to sell) can be difficult in illiquid real estate markets and is subject to significant assumptions and estimates. Management employs an independent third-party management firm that specializes in appraisal preparation and review to ascertain the reasonableness of updated appraisals. Projecting the expected cash flows under troubled debt restructurings which are not collateral dependent is inherently subjective and requires, among other things, an evaluation of the borrower’s current and projected financial condition. Actual results may be significantly different than our projections and our established allowance for loan losses on these loans, which could have a material effect on our financial results.
At
September 30, 2019
, and
September 30, 2018
, there were
no
TDR loans that were restructured during the preceding twelve months that subsequently defaulted.
32
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Note 6 –
Deposits
Deposits account balances are summarized as follows (in thousands):
September 30, 2019
December 31, 2018
Non-interest-bearing demand
$
399,237
$
395,375
Interest-bearing negotiable orders of withdrawal (NOW)
542,315
458,012
Savings and money market
1,403,990
1,336,229
Certificates of deposit
991,767
1,096,896
Total deposits
$
3,337,309
$
3,286,512
Interest expense on deposit accounts is summarized for the periods indicated (in thousands):
Three Months Ended September 30,
Nine Months Ended September 30,
2019
2018
2019
2018
Negotiable orders of withdrawal, savings, and money market
$
5,281
$
2,691
$
15,452
$
7,146
Certificates of deposit
5,235
4,902
15,860
11,708
Total interest expense on deposit accounts
$
10,516
$
7,593
$
31,312
$
18,854
Note 7
–
Equity Incentive Plans
The following table is a summary of the Company’s stock options outstanding as of
September 30, 2019
, and changes therein during the
nine
months then ended.
Number of Stock Options
Weighted Average Grant Date Fair Value
Weighted Average Exercise Price
Weighted Average Contractual Life (years)
Outstanding - December 31, 2018
3,251,595
$
3.93
$
13.51
5.62
Forfeited
(
15,000
)
4.07
14.76
—
Exercised
(
924,312
)
3.70
12.44
—
Outstanding - September 30, 2019
2,312,283
4.02
13.93
5.21
Exercisable - September 30, 2019
2,103,362
4.00
13.78
5.12
Expected future stock option expense related to the non-vested options outstanding as of
September 30, 2019
, is
$
409,000
over a weighted average period of
0.90
years.
The following is a summary of the status of the Company’s restricted stock awards as of
September 30, 2019
, and changes therein during the
nine
months then ended.
Number of Shares Awarded
Weighted Average Grant Date Fair Value
Non-vested at December 31, 2018
328,962
$
14.31
Vested
(
240,860
)
13.86
Forfeited
(
8,000
)
14.76
Non-vested at September 30, 2019
80,102
$
15.61
Expected future stock award expense related to the non-vested restricted share awards as of
September 30, 2019
, is
$
702,000
over a weighted average period of
0.95
years.
During the
three months ended September 30, 2019
and 2018, the Company recorded
$
425,000
and
$
1.4
million
, respectively, of stock-based compensation related to the above plans. During the
nine months ended
September 30, 2019
and 2018, the Company recorded
$
2.9
million
and
$
4.1
million
, respectively, of stock-based compensation related to the above plans.
33
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
On May 22, 2019, the Company's 2019 Equity Incentive Plan (the “2019 EIP”) was approved by stockholders of the Company. Under the 2019 EIP, the maximum number of shares of stock that may be delivered to participants in the form of stock options and stock appreciation rights is
6,000,000
and the maximum number of shares of stock that may be delivered to participants in the form of restricted stock awards and restricted stock units is
1,333,333
shares.
No
shares of stock have been granted under the 2019 EIP. Upon approval of the 2019 EIP, the Northfield Bancorp, Inc. 2014 Equity Incentive Plan (the “2014 EIP”) was frozen and equity awards that would otherwise have been available for issuance are no longer available for grant. As of December 31, 2018,
142,154
restricted shares and
348,373
stock options which were available for grant are no longer available.
Note 8 –
Fair Value Measurements
The following tables present the assets reported on the consolidated balance sheets at their estimated fair value as of
September 30, 2019
, and
December 31, 2018
, by level within the fair value hierarchy as required by the Fair Value Measurements and Disclosures Topic of the Financial Accounting Standards Board (
“
FASB
”
) Accounting Standards Codification (
“
ASC
”
). Financial assets and liabilities are classified in their entirety based on the level of input that is significant to the fair value measurement. The fair value hierarchy is as follows:
•
Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.
•
Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (for example, interest rates, volatilities, prepayment speeds, loss severities, credit risks and default rates) or inputs that are derived principally from or corroborated by observable market data by correlations or other means.
•
Level 3 Inputs – Significant unobservable inputs that reflect the Company’s own assumptions that market participants would use in pricing the assets or liabilities.
The methods of determining the fair value of assets and liabilities presented in this note are consistent with our methodologies disclosed in Note 15 to the Consolidated Financial Statements of the Company’s 2018 Annual Report on Form 10-K.
34
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Fair Value Measurements at September 30, 2019 Using:
Carrying Value
Quoted Prices in Active Markets for Identical Assets (Level 1)
Significant Other Observable Inputs (Level 2)
Significant Unobservable Inputs (Level 3)
(in thousands)
Measured on a recurring basis:
Assets:
Investment securities:
Debt securities available-for-sale:
Mortgage-backed securities:
Pass-through certificates:
GSE
$
358,145
$
—
$
358,145
$
—
REMICs:
GSE
516,412
—
516,412
—
Non-GSE
55
—
55
—
874,612
—
874,612
—
Other debt securities
Municipal bonds
222
—
222
—
Corporate bonds
184,726
—
184,726
—
184,948
—
184,948
—
Total debt securities available-for-sale
1,059,560
—
1,059,560
—
Trading securities
10,375
10,375
—
—
Equity securities
214
214
—
—
Total
$
1,070,149
$
10,589
$
1,059,560
$
—
Measured on a non-recurring basis:
Assets:
Impaired loans:
Real estate loans:
Commercial real estate
$
4,925
$
—
$
—
$
4,925
One-to-four family residential mortgage
340
—
—
340
Multifamily
29
—
—
29
Home equity and lines of credit
30
—
—
30
Total impaired real estate loans
5,324
—
—
5,324
Commercial and industrial loans
15
—
—
15
Total
$
5,339
$
—
$
—
$
5,339
35
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Fair Value Measurements at December 31, 2018 Using:
Carrying Value
Quoted Prices in Active Markets for Identical Assets (Level 1)
Significant Other Observable Inputs (Level 2)
Significant Unobservable Inputs (Level 3)
(in thousands)
Measured on a recurring basis:
Assets:
Investment securities:
Debt securities available-for-sale:
Mortgage-backed securities:
Pass-through certificates:
GSE
$
314,788
$
—
$
314,788
$
—
REMICs:
GSE
250,163
—
250,163
—
Non-GSE
58
—
58
—
565,009
—
565,009
—
Other debt securities
Municipal bonds
273
—
273
—
Corporate bonds
242,749
—
242,749
—
243,022
—
243,022
—
Total debt securities available-for-sale
808,031
—
808,031
—
Trading securities
8,968
8,968
—
—
Equity securities
237
237
—
—
Total
$
817,236
$
9,205
$
808,031
$
—
Measured on a non-recurring basis:
Assets:
Impaired loans:
Real estate loans:
Commercial real estate
$
4,847
$
—
$
—
$
4,847
One-to-four family residential mortgage
765
—
—
765
Multifamily
39
—
—
39
Home equity and lines of credit
28
—
—
28
Total impaired real estate loans
5,679
—
—
5,679
Commercial and industrial loans
18
—
—
18
Total
$
5,697
$
—
$
—
$
5,697
The following table presents qualitative information for Level 3 assets measured at fair value on a non-recurring basis at
September 30, 2019
, and
December 31, 2018
(dollars in thousands):
Fair Value
Valuation Methodology
Unobservable Inputs
Range of Inputs
September 30, 2019
December 31, 2018
September 30, 2019
December 31, 2018
Impaired loans
$
5,339
$
5,697
Appraisals
Discount for costs to sell
7.0
%
7.0
%
Discount for quick sale
10.0
%
10.0
%
Discounted cash flows
Interest rates
4.13% to 6.25%
4.13% to 6.25%
36
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The valuation techniques described below were used to measure fair value of financial instruments in the tables below on a recurring basis and a non-recurring basis as of
September 30, 2019
, and
December 31, 2018
.
Debt Securities Available for Sale:
The estimated fair values for mortgage-backed securities, corporate, and other debt securities are obtained from an independent nationally recognized third-party pricing service. The estimated fair values are derived primarily from cash flow models, which include assumptions for interest rates, credit losses, and prepayment speeds. Broker/dealer quotes are utilized as well, when such quotes are available and deemed representative of the market. The significant inputs utilized in the cash flow models are based on market data obtained from sources independent of the Company (Observable Inputs), and are therefore classified as Level 2 within the fair value hierarchy. There were no transfers of securities between Level 1 and Level 2 during the
nine months ended
September 30, 2019
.
Trading Securities:
Fair values are derived from quoted market prices in active markets. The assets consist of publicly traded mutual funds.
Equity Securities:
Fair values of equity securities consisting of publicly traded mutual funds are derived from quoted market prices in active markets.
Impaired Loans:
At
September 30, 2019
,
and
December 31, 2018
, the Company had impaired loans
held-for-investment (excluding PCI loans) with outstanding
principal balances of
$
7.4
million
and
$
10.2
million
, respectively, which
were recorded at their estimated fair value of
$
5.3
million
and
$
5.7
million
, respectively. The Company recorded a net increase in the specific reserve for impaired loans of
$
117,000
and
$
447,000
for the
nine months ended
September 30, 2019
and
September 30, 2018
, respectively, and net recoveries of
$
1.3
million
for the
nine months ended
September 30, 2019
, and net charge-offs of
$
481,000
for the
nine months ended
September 30, 2018
, utilizing level 3 inputs. For
purposes of estimating the fair value of impaired loans, management utilizes independent appraisals, if the loan is collateral dependent, adjusted downward by management, as necessary, for changes in relevant valuation factors subsequent to the appraisal date, or the present value of expected future cash flows for non-collateral dependent loans and troubled debt restructurings.
In addition, the Company may be required, from time to time, to measure the fair value of certain other financial assets on a nonrecurring basis in accordance with U.S. GAAP. The adjustments to fair value usually result from the application of lower-of-cost-or-market accounting or write downs of individual assets.
Fair Value of Financial Instruments
The FASB ASC Topic for Financial Instruments
requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The following methods and assumptions were used to estimate the fair value of other financial assets and financial liabilities not already discussed above:
(a)
Cash and Cash Equivalents
Cash and cash equivalents are short-term in nature with original maturities of three months or less; the carrying amount approximates fair value. Certificates of deposit having original terms of six-months or less; the carrying value generally approximates fair value. Certificates of deposit with an original maturity of six months or greater; the fair value is derived from discounted cash flows.
(b)
Debt Securities (Held to Maturity)
The estimated fair values for substantially all of our securities are obtained from an independent nationally recognized pricing service. The independent pricing service utilizes market prices of same or similar securities whenever such prices are available. Prices involving distressed sellers are not utilized in determining fair value. Where necessary, the independent third-party pricing service estimates fair value using models employing techniques such as discounted cash flow analysis. The assumptions used in these models typically include assumptions for interest rates, credit losses, and prepayments, utilizing market observable data where available.
37
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
(c)
Investments in Equity Securities at Net Asset Value Per Share
The Company uses net asset value as a practical expedient to record its investment in a private SBA Loan Fund since the shares in the fund are not publicly traded, do not have a readily determinable fair value and the net asset value per share is calculated in a manner consistent with the measurement principles of an investment company.
(d)
Federal Home Loan Bank of New York Stock
The fair value for Federal Home Loan Bank of New York (FHLB) stock is its carrying value, since this is the amount for which it could be redeemed and there is no active market for this stock.
(e)
Loans (Held-for-Investment)
Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as originated and purchased, and further segregated by residential mortgage, construction, land, multifamily, commercial and consumer. Each loan category is further segmented into amortizing and non-amortizing and fixed and adjustable rate interest terms and by performing and nonperforming categories. The fair value of loans is estimated using a discounted cash flow analysis. The discount rates used to determine fair value use interest rate spreads that reflect factors such as liquidity, credit, and nonperformance risk of the loans.
(f)
Loans (Held-for-Sale)
Held-for-sale loans are carried at the lower of aggregate cost or estimated fair value, less costs to sell, and therefore fair value is equal to carrying value.
(g)
Deposits
The fair value of deposits with no stated maturity, such as non-interest bearing demand deposits, savings, NOW and money market accounts, is equal to the amount payable on demand. The fair value of certificates of deposit is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities.
(h)
Commitments to Extend Credit and Standby Letters of Credit
The fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair value of off‑balance sheet commitments is insignificant and therefore not included in the following table.
(i)
Borrowings
The fair value of borrowed funds is estimated by discounting future cash flows based on rates currently available for debt with similar terms and remaining maturity.
(j)
Advance Payments by Borrowers for Taxes and Insurance
Advance payments by borrowers for taxes and insurance have no stated maturity; the fair value is equal to the amount currently payable.
38
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The estimated fair value of the Company’s financial instruments at
September 30, 2019
, and
December 31, 2018
, is presented in the following tables (in thousands):
September 30, 2019
Estimated Fair Value
Carrying Value
Level 1
Level 2
Level 3
Total
Financial assets:
Cash and cash equivalents
$
69,652
$
69,652
$
—
$
—
$
69,652
Trading securities
10,375
10,375
—
—
10,375
Debt securities available-for-sale
1,059,560
—
1,059,560
—
1,059,560
Debt securities held-to-maturity
8,817
—
8,907
—
8,907
Equity securities
(1)
214
214
—
—
214
Federal Home Loan Bank of New York stock, at cost
32,105
—
32,105
—
32,105
Net loans held-for-investment
3,327,082
—
—
3,365,156
3,365,156
Financial liabilities:
Deposits
$
3,337,309
$
—
$
3,343,201
$
—
$
3,343,201
Borrowed funds
691,161
—
697,078
—
697,078
Advance payments by borrowers for taxes and insurance
18,751
—
18,751
—
18,751
December 31, 2018
Estimated Fair Value
Carrying Value
Level 1
Level 2
Level 3
Total
Financial assets:
Cash and cash equivalents
$
77,762
$
77,762
$
—
$
—
$
77,762
Trading securities
8,968
8,968
—
—
8,968
Debt securities available-for-sale
808,031
—
808,031
—
808,031
Debt securities held-to-maturity
9,505
—
9,249
—
9,249
Equity securities
(1)
237
237
—
237
Federal Home Loan Bank of New York stock, at cost
22,517
—
22,517
—
22,517
Net loans held-for-investment
3,217,673
—
—
3,236,136
3,236,136
Financial liabilities:
Deposits
$
3,286,512
$
—
$
3,291,085
$
—
$
3,291,085
Borrowed funds
408,891
—
403,476
—
403,476
Advance payments by borrowers for taxes and insurance
18,007
—
18,007
—
18,007
(1) Excludes investments measured at net asset value in the amount of
$
2.1
million
at
September 30, 2019
and
$
1.0
million
at
December 31, 2018
, which have not been classified in the fair value hierarchy.
Limitations
Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected losses, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on-and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.
39
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Note 9 –
Earnings Per Share
Basic earnings per share is computed by dividing net income available to common stockholders by the weighted average number of shares outstanding during the period. For purposes of calculating basic earnings per share, weighted average common shares outstanding excludes unallocated employee stock ownership plan (“ESOP”) shares that have not been committed for release and unvested restricted stock.
Diluted earnings per share is computed using the same method as basic earnings per share, but reflects the potential dilution that could occur if stock options and unvested shares of restricted stock were exercised and converted into common stock. These potentially dilutive shares would then be included in the weighted average number of shares outstanding for the period using the treasury stock method. When applying the treasury stock method we added the assumed proceeds from option exercises and the average unamortized compensation costs related to unvested shares of restricted stock and stock options. We then divided this sum by our average stock price for the period to calculate assumed shares repurchased. The excess of the number of shares issuable over the number of shares assumed to be repurchased is added to basic weighted average common shares to calculate diluted earnings per share.
The following is a summary of the Company’s earnings per share calculations and reconciliation of basic to diluted earnings per share for the periods indicated (dollars in thousands, except per share data):
Three Months Ended September 30,
Nine Months Ended September 30,
2019
2018
2019
2018
Net income available to common stockholders
$
13,139
$
9,076
$
30,114
$
30,132
Weighted average shares outstanding-basic
46,631,008
46,604,051
46,808,188
46,192,273
Effect of non-vested restricted stock and stock options outstanding
348,206
690,594
370,502
945,134
Weighted average shares outstanding-diluted
46,979,214
47,294,645
47,178,690
47,137,407
Earnings per share-basic
$
0.28
$
0.19
$
0.64
$
0.65
Earnings per share-diluted
$
0.28
$
0.19
$
0.64
$
0.64
Anti-dilutive shares
176,944
190,444
700,512
645,011
40
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Note 10 –
Leases
Effective January 1, 2019, the Company adopted Accounting Standards Update (“ASU”) No. 2016-02,
Leases (
“
Topic 842
”
)
and all subsequent ASU's that modified Topic 842, as further explained in Note 12, Recent Accounting Pronouncements. The Company’s leases primarily relate to real estate property for branches and office space with terms extending from
12
months
up to
35.75
years
. At
September 30, 2019
, all of the Company's leases are classified as operating leases.
The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use assets and operating lease liabilities in the consolidated balance sheets. Right-of-use assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recorded at the present value of lease payments over the lease term. As the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate in determining the present value of lease payments. Certain leases include options to renew, with one or more renewal terms ranging from
five
to
ten years
. As these extension options are not generally considered reasonably certain of renewal, they are not included in the lease term.
At
September 30, 2019
, the Company’s operating lease right-of-use assets and related lease liabilities included in the consolidated balance sheet were
$
41.2
million
and
$
45.2
million
, respectively. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are recognized as incurred. Variable lease payments include common area maintenance charges, real estate taxes, repairs and maintenance costs and utilities. Operating and variable lease expenses are recorded in occupancy expense in the consolidated statements of income.
Supplemental lease information at or for the three and
nine months ended September 30, 2019
is as follows (dollars in thousands):
Three Months Ended September 30,
Nine Months Ended September 30,
2019
2019
Operating lease cost
$
1,551
$
4,568
Variable lease cost
663
2,152
Net lease cost
$
2,214
$
6,720
Cash paid for amounts included in measurement of operating lease liabilities
$
1,528
$
4,368
Right-of-use assets obtained in exchange for new operating lease liabilities
$
—
$
1,013
Weighted average remaining lease term at September 30, 2019
12.86
years
Weighted average discount rate at September 30, 2019
3.61
%
The following table summarizes lease payment obligations for each of the next five years and thereafter in addition to a reconcilement to the Company's current lease liability (dollars in thousands):
Year
Amount
2019
$
1,533
2020
6,156
2021
5,729
2022
5,068
2023
4,975
Thereafter
35,288
Total lease payments
58,749
Less: imputed interest
(
13,553
)
Present value of lease liabilities
$
45,196
As of
September 30, 2019
, the Company had not entered into any leases that have not yet commenced.
41
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
The following table summarizes projected minimum annual rental payments for operating leases under FASB ASC 840 “Leases” as of December 31, 2018 (dollars in thousands):
Rental Payments Operating Leases
Year ending December 31:
2019
$
5,735
2020
5,949
2021
5,512
2022
4,844
2023
4,744
Thereafter
35,260
Total minimum lease payments
$
62,044
Net rental expense included in occupancy expense under FASB ASC 840 was
$
1.4
million
and
$
4.2
million
for the three and
nine months ended September 30, 2018
.
Note 11 –
Revenue Recognition
The Company records revenue from contracts with customers in accordance with ASU 2014-09,
Revenue from Contracts with Customers (“Topic 606”)
. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Topic 606 does not apply to revenue associated with financial instruments, including revenue from loans and securities, which comprise the majority of the Company’s revenue.
The Company’s revenue streams that are within the scope of Topic 606 include service charges on deposit accounts, ATM and card interchange fees, investment services fees, and other miscellaneous income. Fees and service charges for customer services include: (i) service charges on deposit accounts, including account maintenance fees, overdraft fees, insufficient funds fees, wire fees, and other deposit related fees; (ii) ATM and card interchange fees, which include fees generated when a Bank cardholder uses a non-Bank ATM or a non-Bank cardholder uses a Bank ATM, and fees earned whenever the Bank's debit cards are processed through card payment networks such as Visa; and (iii) investment services fees earned through partnering with a third party investment and brokerage service firm to provide insurance and investment products to customers. The Company's performance obligation for fees and service charges is satisfied and related revenue recognized immediately or in the month of performance of services.
Other income includes rental income from subleasing one of the Company's branches to a third party and income and gains or losses, net, related to OREO. For these transactions, revenue is recognized at the time the transaction occurs.
The following table summarizes non-interest income for the periods indicated (dollars in thousands):
Three Months Ended September 30,
Nine Months Ended September 30,
2019
2018
2019
2018
Fees and service charges for customer services:
Service charges
$
864
$
862
$
2,458
$
2,474
ATM and card interchange fees
343
317
983
897
Investment fees
79
62
192
231
Total fees and service charges for customer services
1,286
1,241
3,633
3,602
Income on bank owned life insurance
(1)
3,268
919
5,071
2,787
Gains on available-for-sale debt securities, net
(1)
123
7
337
178
Gains on trading securities, net
(1)
28
412
1,457
714
Other
28
58
115
205
Total non-interest income
$
4,733
$
2,637
$
10,613
$
7,486
(1)
Not in scope of Topic 606
42
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
Note 12 –
Recent Accounting Pronouncements
Accounting Pronouncements Adopted
ASU No. 2016-02.
In February 2016, the FASB issued ASU No. 2016-02,
Leases (
“
Topic 842
”
)
, which requires all lessees to recognize a lease liability and a right-of-use asset, measured at the present value of the future minimum lease payments, at the lease commencement date for leases classified as operating leases as well as finance leases. Under this guidance, lessor accounting is largely unchanged. This ASU became effective for annual and interim periods for the Company on January 1, 2019. The Company adopted the standard by applying the alternative transition method whereby comparative periods were not restated, and
no
cumulative effect adjustment to the opening balance of retained earnings was recognized as of January 1, 2019. The Company also elected the ASU’s package of three practical expedients, which allowed the Company to forego a reassessment of (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) the initial direct costs for any existing leases. The Company also elected not to apply the recognition requirements of the ASU to any short-term leases (as defined by related accounting guidance) and will account for lease and non-lease components separately because such amounts are readily determinable under most lease contracts. The adoption of this standard resulted in the Company recognizing operating lease right-of-use assets and related operating lease liabilities totaling
$
43.6
million
and
$
47.3
million
respectively, as of
January 1, 2019
. The adoption of this ASU did not have a material impact on the Company’s consolidated results of operations. See Note 10, Leases, for further disclosures.
ASU No. 2017-08.
In March 2017, the FASB issued ASU No. 2017-08,
Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities
. The amendments in this update require the premium on callable debt securities to be amortized to the earliest call date rather than the maturity date; however, securities held at a discount continue to be amortized to maturity. The amendments apply only to debt securities purchased at a premium that are callable at fixed prices and on preset dates. The amendments more closely align interest income recorded on debt securities held at a premium or discount with the economics of the underlying instrument. This ASU became effective for the Company on January 1, 2019, and did not have a material impact on the Company's consolidated financial statements.
ASU No. 2018-07.
In June 2018, the FASB issued ASU No. 2018-07,
Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting,
which is intended to align the accounting for share-based payment awards issued to employees and nonemployees. The guidance applies to nonemployee awards issued in exchange for goods or services used or consumed in an entity’s own operations and to awards granted by an investor to employees and nonemployees of an equity method investee for goods or services used or consumed in the investee’s operations. There are no new disclosure requirements. This ASU became effective for the Company on January 1, 2019. Adoption of this ASU did not have an impact on the Company's consolidated financial statements, as share-based payment awards to nonemployee Directors are accounted for in the same manner as share-based payment awards for employees.
Accounting Pronouncements Not Yet Adopted
ASU 2019-05.
In May 2019, the FASB issued ASU No. 2019-05,
“Financial Instruments - Credit Losses (Topic 326);
Targeted Transition Relief.”
This ASU allows entities to irrevocably elect, upon adoption of ASU 2016-13, the fair value option on financial instruments that (1) were previously recorded at amortized cost and (2) are within the scope of ASC 326-20 if the instruments are eligible for the fair value option under ASC 825-10. The fair value option election does not apply to held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. ASU 2019-05 has the same effective date as ASU 2016-13 (January 1, 2020). The Company does not expect to elect the fair value option, and therefore, ASU 2019-05 is not expected to impact the Company’s Consolidated Financial Statements.
ASU 2019-04.
In April 2019, the FASB issued ASU No. 2019-04,
"Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments"
, that clarifies and improves areas of guidance related to the recently issued standards on credit losses (ASU 2016-13), hedging (ASU 2017-12), and recognition and measurement of financial instruments (ASU 2016-01). The amendments generally have the same effective dates as their related standards. The Company does not expect the amendments of ASU 2019-04 will have a material impact on its Consolidated Financial Statements.
43
Table of Contents
NORTHFIELD BANCORP, INC.
Notes to Unaudited Consolidated Financial Statements - (Continued)
ASU No. 2018-15.
In August 2018, the FASB issued ASU No. 2018-15,
“Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract.”
This guidance aligns the accounting for implementation costs related to a hosting arrangement that is a service contract with the guidance on capitalizing costs associated with developing or obtaining internal-use software. Specifically, where a cloud computing arrangement includes a license to internal-use software, the software license is accounted for by the customer in accordance with Subtopic 350-40, “Intangibles - Goodwill and Other-Internal-Use Software”. ASU No. 2018-15 is effective for fiscal years beginning after December 15, 2019, with early adoption permitted. The amendments in this ASU should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. ASU No. 2018-15 is not expected to have a material impact on the Company’s Consolidated Financial Statements.
ASU No. 2018-14.
In August 2018, the FASB issued ASU No. 2018-14,
“Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans.”
This ASU makes minor changes to the disclosure requirements for employers that sponsor defined benefit pension and/or other postretirement benefit plans. ASU 2018-14 is effective for fiscal years ending after December 15, 2020; early adoption is permitted. As ASU 2018-14 only revises disclosure requirements, it will not have an impact on the Company’s Consolidated Financial Statements.
ASU No 2017-04.
In January 2017, the FASB issued ASU No. 2017-04,
Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.
The ASU simplifies the subsequent measurement of goodwill impairment by eliminating the requirement to calculate the implied fair value of goodwill (i.e., the current Step 2 of the goodwill impairment test) to measure a goodwill impairment charge. As amended, the goodwill impairment test will consist of one step comparing the fair value of a reporting unit with its carrying amount. A goodwill impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value. The ASU is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. The adoption of this pronouncement is not expected to have an effect on the Company's consolidated financial statements.
ASU No. 2016-13.
In June 2016, the FASB issued No. ASU No. 2016-13,
Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments
, which requires credit losses on most financial assets measured at amortized cost and certain other instruments to be measured using an expected credit loss model (referred to as the current expected credit loss (“CECL”) model. ASU No. 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019. Under this model, entities will estimate credit losses over the entire contractual term of the instrument from the date of initial recognition of that instrument. Current US GAAP is based on an incurred loss model that delays recognition of credit losses until it is probable the loss has been incurred. The new CECL model will require an estimate of expected credit losses, measured over the contractual life of an instrument, which considers reasonable and supportable forecasts of future economic conditions in addition to information about past events and current conditions. The ASU lists several credit loss methods that are acceptable such as a discounted cash flow method, loss-rate method and probability of default/loss given default (PD/LGD) method. The Company currently plans on utilizing the PD/LGD methodology to estimate its credit loss reserve. To date the Company has (i) established a CECL cross-functional working group that includes individuals from credit, risk management, finance, audit, loan data governance, and lending to provide cross-functional governance over the project plan and key decisions; (ii) contracted with a third-party vendor to implement the software solution that will incorporate the CECL loss measurement requirements; (iii) completed its historical data assessment and established loan portfolio segments with similar risk characteristics; (iv) begun testing and sensitivity analysis on its modeling assumptions and results; and (v) begun documentation of processes and internal controls. The Company is in the process of developing a qualitative framework and reasonable and supportable forecast model which will utilize multiple scenarios based on forecast data from Moody's over a forecast period of 24 months. The Company plans to adopt the new standard on January 1, 2020, and will continue to test, validate and refine its CECL models during the fourth quarter of 2019. The adoption of ASU No. 2016-13 may result in an increase in the allowance for loan losses as a result of changing from an incurred loss model, which encompasses allowances for current known and inherent losses within the portfolio, to an expected losses model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. However, further development, testing and evaluation of the models is required to determine the impact that adoption of this standard will have on the financial condition and results of operations of the Company.
44
Table of Contents
ITEM 2.
MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Cautionary Statement Regarding Forward-Looking Statements
This Quarterly Report contains certain “forward-looking statements,” which can be identified by the use of such words as “estimate,” “project,” “believe,” “intend,” “anticipate,” “plan,” “seek,” “expect,” “annualized,” “could,” “may,” “should,” “will,” and words of similar meaning. These forward-looking statements include, but are not limited to:
•
statements of our goals, intentions, and expectations;
•
statements regarding our business plans, prospects, growth and operating strategies;
•
statements regarding the quality of our loan and investment portfolios; and
•
estimates of our risks and future costs and benefits.
These forward-looking statements are based on the current beliefs and expectations of our management and are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond our control. In addition, these forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change.
The following factors, among others, could cause actual results to differ materially from the anticipated results or other expectations expressed in the forward-looking statements:
•
general economic conditions, either nationally or in our market areas, including employment prospects, real estate values and conditions, that are worse than expected;
•
competition among depository and other financial institutions;
•
inflation and changes in the interest rate environment, including uncertainty about the future of the London Interbank Offered Rate (“LIBOR”), that could reduce our margins and yields or reduce the fair value of financial instruments;
•
adverse changes in the securities, credit markets or real estate values;
•
changes in laws, tax policies, or government regulations or policies affecting financial institutions, including changes in regulatory fees and capital requirements;
•
our ability to manage operations in the current economic conditions;
•
our ability to enter new markets successfully and capitalize on growth opportunities;
•
our ability to successfully integrate acquired entities;
•
changes in consumer demand, spending, borrowing and savings habits;
•
changes in accounting policies and practices, as may be adopted by the bank regulatory agencies, the Financial Accounting Standards Board, or the Securities and Exchange Commission, or the Public Company Accounting Oversight Board;
•
cyber attacks, computer viruses and other technological risks that may breach the security of our websites or other systems to obtain unauthorized access to confidential information and destroy data or disable our systems;
•
technological changes that may be more difficult or expensive than expected;
•
changes in our organization, compensation, and benefit plans;
•
changes in the level of government support for housing finance;
•
changes in monetary or fiscal policies of the U.S. Government, including policies of the U.S. Treasury and the Federal Reserve Board (“FRB”);
•
the ability of third-party providers to perform their obligations to us;
•
the ability of the U.S. Government to manage federal debt limits;
•
the effects of any U.S. Government shutdowns;
•
significant increases in our allowance for loan losses, including increases that may result from the new authoritative accounting guidance (known as the current expected credit loss (“CECL”) model which may increase the required level of our allowance for loan losses after adoption effective January 1, 2020; and
•
changes in the financial condition, results of operations, or future prospects of issuers of securities that we own.
Because of these and other uncertainties, our actual future results may be materially different from the results indicated by these forward-looking statements. Accordingly, you should not place undue reliance on such statements.
Except as required by law, we disclaim any intention or obligation to update or revise any forward-looking statements after the date of this Quarterly Report on Form 10-Q, whether as a result of new information, future events or otherwise.
45
Table of Contents
Critical Accounting Policies
Note 1 to the Company’s Audited Consolidated Financial Statements for the year ended
December 31, 2018
, included in the Company’s Annual Report on Form 10-K, as supplemented by this report, contains a summary of significant accounting policies. Various elements of these accounting policies, by their nature, are inherently subject to estimation techniques, valuation assumptions and other subjective assessments. Certain assets are carried in the Consolidated Balance Sheets at estimated fair value or the lower of cost or estimated fair value. Policies with respect to the methodologies used to determine the allowance for loan losses, estimated cash flows of our purchased credit-impaired (“PCI”) loans, and judgments regarding the valuation allowance against deferred tax assets are the most critical accounting policies because they are important to the presentation of the Company’s financial condition and results of operations, involve a higher degree of complexity, and require management to make subjective judgments which often require assumptions or estimates about highly uncertain matters. The use of different judgments, assumptions, and estimates could result in material differences in the results of operations or financial condition. These critical accounting policies and their application are reviewed periodically and, at least annually, with the Audit Committee of the Board of Directors. For a further discussion of the critical accounting policies of the Company, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s Annual Report on Form 10-K for the year ended
December 31, 2018
.
Overview
This overview highlights selected information and may not contain all the information that is important to you in understanding our performance during the period. For a more complete understanding of trends, events, commitments, uncertainties, liquidity, capital resources, and critical accounting estimates, you should read this entire document carefully, as well as our Annual Report on Form 10-K for the year ended
December 31, 2018
.
Net income was
$30.1 million
for both the
nine months ended September 30, 2019
, and September 30, 2018. Basic and diluted earnings per common share were
$0.64
for the
nine months ended September 30, 2019
, compared to basic and diluted earnings per common share of
$0.65
and
$0.64
, respectively, for the
nine months ended September 30, 2018
. Earnings for the
nine months ended September 30, 2019
benefited from $2.4 million, or $0.05 per diluted share, of tax-exempt income from bank owned life insurance proceeds in excess of the cash surrender value of the related policies, and $1.6 million, after tax, or $0.03 per diluted share, of income related to recoveries on loans previously charged-off. Earnings for the nine months ended September 30, 2018 benefited from excess tax benefits of $2.2 million, or $0.05 per diluted share, related to the exercise or vesting of equity awards, whereas there were no material tax benefits for the
nine months ended September 30, 2019
. For the
nine months ended September 30, 2019
, our return on average assets was
0.87%
, as compared to
0.97%
for the
nine months ended September 30, 2018
. For the
nine months ended September 30, 2019
, our return on average stockholders’ equity was
5.92%
as compared to
6.22%
for the
nine months ended September 30, 2018
.
Assets
increase
d by
$399.9 million
, or
9.1%
, to
$4.81 billion
at
September 30, 2019
, from
$4.41 billion
at
December 31, 2018
. Liabilities
increase
d
$376.4 million
, or
10.1%
, to
$4.12 billion
at
September 30, 2019
, from
$3.74 billion
at
December 31, 2018
.
On September 16, 2019, the Company announced its intention to combine three branch offices (two located in Brooklyn, New York, and one in Milltown, New Jersey) into existing nearby Northfield Bank locations. The branch consolidations are expected to occur on December 31, 2019, and the Company expects to record a one-time charge in occupancy costs of approximately $1.2 million in the fourth quarter of 2019, attributable to accelerated lease rental expense and accelerated leasehold amortization expense.
Comparison of Financial Condition at
September 30, 2019
, and
December 31, 2018
Total assets
increase
d
$399.9 million
, or
9.1%
, to
$4.81 billion
at
September 30, 2019
, from
$4.41 billion
at
December 31, 2018
. The increase was primarily due to increases in available-for sale debt securities of
$251.5 million
, or
31.1%
, loans held-for-investment, net, of
$110.0 million
, or
3.4%
, Federal Home Loan Bank of New York stock of
$9.6 million
, or
42.6%
, and the recording of our operating lease right-of-use assets of
$41.2 million
from the adoption of a new lease accounting standard, Accounting Standards Update (ASU) No. 2016-02
Leases (Topic 842)
on January 1, 2019. The new lease standard requires us to recognize on the balance sheet right-of-use assets, which approximate the present value of our remaining lease payments. Partially offsetting these increases was a decrease in cash and cash equivalents of
$8.1 million
, or
10.4%
, and a decrease in other assets of
$6.8 million
, or
21.5%
.
46
Table of Contents
The Company’s available-for-sale debt securities portfolio increased by
$251.5 million
, or
31.1%
, to
$1.06 billion
at
September 30, 2019
, from
$808.0 million
at
December 31, 2018
. The increase was primarily attributable to purchases of mortgage-backed and corporate securities, utilizing excess cash from deposit growth and additional borrowings to invest in high quality shorter-term securities, partially offset by paydowns and sales. At
September 30, 2019
,
$874.6 million
of the portfolio consisted of residential mortgage-backed securities issued or guaranteed by Fannie Mae, Freddie Mac, or Ginnie Mae. In addition, the Company held
$184.7 million
in corporate bonds, substantially all of which were considered investment grade at
September 30, 2019
, and
$222,000
in municipal bonds. The effective duration of the securities portfolio at
September 30, 2019
was 1.76 years.
As of
September 30, 2019
, our commercial real estate concentration (as defined by regulatory guidance) to total risk-based capital was 441%. Management believes that Northfield Bank (the “Bank”) has implemented appropriate risk management practices including risk assessments, board approved underwriting policies and related procedures, which include monitoring bank portfolio performance, performing market analysis (economic and real estate), and stressing of the Bank’s commercial real estate portfolio under severe adverse economic conditions. Although management believes the Bank has implemented appropriate policies and procedures to manage our commercial real estate concentration risk, the Bank’s regulators could require us to implement additional policies and procedures or could require us to maintain higher levels of regulatory capital, which might adversely affect our loan originations, ability to pay dividends, and profitability.
Loans held-for-investment, net,
increase
d
$110.0 million
to
$3.36 billion
at
September 30, 2019
, from
$3.25 billion
at
December 31, 2018
, primarily due to an increase in originated loans held-for-investment of
$180.8 million
, partially offset by decreases in acquired loans of
$68.1 million
and PCI loans of
$2.7 million
. Originated loans held-for-investment, net, totaled
$2.86 billion
at
September 30, 2019
, as compared to
$2.68 billion
at
December 31, 2018
. The increase was primarily due to an increase in multifamily real estate loans of
$167.8 million
, or
8.7%
, to
$2.10 billion
at
September 30, 2019
, from
$1.93 billion
at
December 31, 2018
.
On June 14, 2019, the State of New York announced revised rent laws that included repealing provisions that remove units from rent stabilization when rent crosses a high threshold or when a unit becomes vacant, or if the tenant’s income is $200,000 or higher in the preceding two years. The updated laws also eliminate a “vacancy bonus” provision which allowed property owners to raise rents as much as 20% each time a unit becomes vacant. At September 30, 2019, the Company has approximately $398.0 million in multifamily loans in New York City with tenants that have some form of rent stabilization or rent control. The weighted average loan to value (“LTV”) was 46.4% based on the current balance and the collateral value at date of origination on this portfolio. The highest LTV in this portfolio is 73.0%. All of the loans are performing as agreed. Management will continue to evaluate the effect of rent regulations on the collateral values.
The following tables detail our multifamily real estate originations for the
nine months ended September 30, 2019
and
2018
(dollars in thousands):
For the Nine Months Ended September 30, 2019
Multifamily Originations
Weighted Average Interest Rate
Weighted Average Loan-to-Value Ratio
Weighted Average Months to Next Rate Change or Maturity for Fixed Rate Loans
(F)ixed or (V)ariable
Amortization Term
$
296,236
4.16%
56%
92
V
10 to 30 Years
36,178
4.36%
55%
241
F
10 to 30 Years
$
332,414
4.18%
56%
For the Nine Months Ended September 30, 2018
Multifamily Originations
Weighted Average Interest Rate
Weighted Average Loan-to-Value Ratio
Weighted Average Months to Next Rate Change or Maturity for Fixed Rate Loans
(F)ixed or (V)ariable
Amortization Term
$
256,442
3.88%
64%
78
V
25 to 30 Years
12,365
4.17%
39%
181
F
15 Years
$
268,807
3.89%
63%
Acquired loans
decrease
d by
$68.1 million
to
$478.0 million
at
September 30, 2019
, from
$546.2 million
at
December 31, 2018
, primarily due to paydowns of one-to-four family residential and multifamily loans with weighted average interest rates (net of the servicing fee retained by the originating bank) of 3.57% and 3.08%, respectively, partially offset by purchases of one-to-four family residential loan pools totaling
$44.2 million
.
47
Table of Contents
The following tables provide the details of the loan pools purchased during the nine months ended
September 30, 2019
, and
September 30, 2018
(dollars in thousands):
Nine Months Ended September 30, 2019
Principal Amounts Purchased
Loan Type
Weighted Average Interest Rate
(1)
Weighted Average Loan-to-Value Ratio
Weighted Average Months to Next Rate Change or Maturity for Fixed Rate Loans
(F)ixed or (V)ariable
Original Amortization Term
$
4,230
Residential
4.19%
70.5%
324
F
15 - 30 Years
17,253
Residential
3.69%
63.0%
78
V
30 Years
19,448
Residential
4.19%
71.3%
333
F
30 Years
3,262
Residential
3.93%
65.5%
346
F
30 Years
$
44,193
3.98%
The geographic locations of the properties collateralizing the loans purchased in the table above are as follows: 83.0% in Massachusetts, 13.1% in New York, and 3.9% in New Jersey.
Nine Months Ended September 30, 2018
Principal Amounts Purchased
Loan Type
Weighted Average Interest Rate
(1)
Weighted Average Loan-to-Value Ratio
Weighted Average Months to Next Rate Change or Maturity for Fixed Rate Loans
(F)ixed or (V)ariable
Original Amortization Term
$
29,963
Residential
2.30%
55%
1
V
30 Years
4,368
Residential
3.67%
58%
346
F
15 - 30 Years
3,178
Residential
3.68%
60%
330
F
15 - 30 Years
$
37,509
2.58%
(1) Net of servicing fee retained by the originating bank
The geographic locations of the properties collateralizing the loans purchased in the table above are as follows: 32.7% in New York, 29.9% in California, and 27.1% in Massachusetts, with the majority of the remaining balance in New Jersey.
PCI loans totaled
$17.4 million
at
September 30, 2019
, as compared to
$20.1 million
at
December 31, 2018
. The majority of the PCI loan balance consists of loans acquired as part of a Federal Deposit Insurance Corporation-assisted transaction.
Cash and cash equivalents
decrease
d by
$8.1 million
, or
10.4%
, to
$69.7 million
at
September 30, 2019
, from
$77.8 million
at
December 31, 2018
. Balances fluctuate based on the timing of receipt of security and loan repayments and the redeployment of cash into higher-yielding assets such as loans and securities, or the funding of deposit outflows or borrowing maturities.
Other assets decreased
$6.8 million
, or
21.5%
, to
$24.8 million
at
September 30, 2019
, from
$31.6 million
at
December 31, 2018
. The decrease was primarily attributable to a decrease in net deferred tax assets associated with an increase in net unrealized gains on our debt securities available-for-sale portfolio.
Total liabilities
increase
d
$376.4 million
, or
10.1%
, to
$4.12 billion
at
September 30, 2019
, from
$3.74 billion
at
December 31, 2018
. The
increase
was primarily attributable to
increase
s in deposits of
$50.8 million
, securities sold under agreements to repurchase of
$75.0 million
, other borrowings of
$207.3 million
, and operating lease liabilities of
$45.2 million
, attributable to capitalization of our operating leases as a result of the adoption of ASU No. 2016-02, effective January 1, 2019.
Deposits
increase
d
$50.8 million
, or
1.5%
, to
$3.34 billion
at
September 30, 2019
, as compared to
$3.29 billion
at
December 31, 2018
. The
increase
was attributable to increases of
$88.2 million
in transaction accounts and $138.9 million in savings accounts, partially offset by decreases of $71.0 million in money market accounts, and
$105.1 million
in certificates of deposit. The growth in deposits was primarily in response to promotion of our new high performance checking accounts and premier savings accounts.
Borrowings and securities sold under agreements to repurchase
increase
d to
$691.2 million
at
September 30, 2019
, from
$408.9 million
at
December 31, 2018
. Management utilizes borrowings to mitigate interest rate risk, for short-term liquidity, and to a lesser extent as part of leverage strategies.
48
Table of Contents
The following is a table of term borrowing maturities (excluding capitalized leases and overnight borrowings) and the weighted average rate by year at
September 30, 2019
(dollars in thousands):
Year
Amount
Weighted Average Rate
2019
$180,000
2.15%
2020
90,000
1.65%
2021
145,000
1.94%
2022
120,000
2.29%
2023
87,500
2.89%
Thereafter
62,500
2.57%
$685,000
2.20%
Total stockholders’ equity
increase
d by
$23.5 million
to
$689.9 million
at
September 30, 2019
, from
$666.4 million
at
December 31, 2018
. The increase was primarily attributable to net income of
$30.1 million
for the
nine months ended
September 30, 2019
, a $14.3 million increase in accumulated other comprehensive income associated with unrealized gains on our debt securities available-for-sale portfolio, and a $9.8 million increase in ESOP and equity award activity. The increase was partially offset by $15.1 million in dividend payments and $15.6 million in stock repurchases.
Comparison of Operating Results for the
Nine Months Ended September 30, 2019
and
2018
Net Income.
Net income was
$30.1 million
for both the
nine months ended
September 30, 2019
, and
September 30, 2018
. Significant variances from the comparable prior year period are as follows: a
$3.1 million
increase
in non-interest income, a
$2.8 million
decrease
in the provision for loan losses, a
$3.6 million
increase
in non-interest expense, and a $
2.4 million
increase
in income tax expense.
Interest Income
.
Interest income increased
$14.2 million
, or
13.1%
, to
$122.5 million
for the
nine months ended
September 30, 2019
, from
$108.3 million
for the
nine months ended
September 30, 2018
, due to an increase in the average balance of interest-earning assets of
$396.0 million
, or
10.1%
, and a
10
basis point increase in the yields earned. Interest income on loans increased by
$6.5 million
, primarily attributable to an increase in the average loan balances of
$100.2 million
and a 15 basis point increase in the yield earned. Interest income on securities increased by
$7.5 million
, primarily attributable to an increase in the average securities balances of
$301.7 million
and a 29 basis point increase in the yields earned. The Company accreted interest income related to its PCI loans of
$3.1 million
for both nine-month periods ended
September 30, 2019
and September 30, 2018. Interest income on loans for the
nine months ended
September 30, 2019
, included loan prepayment income of $1.2 million, as compared to $1.5 million for the
nine months ended
September 30, 2018
. Also included in interest income for the
nine months ended
September 30, 2019
was $314,000 from the pay-off of a non-accrual loan.
Interest Expense
.
Interest expense increased
$14.1 million
, or
56.1%
, to
$39.2 million
for the
nine months ended
September 30, 2019
, as compared to
$25.1 million
for
nine months ended
September 30, 2018
. The increase was due to an increase in interest expense on deposits of
$12.5 million
, or
66.1%
, and an increase in interest expense on borrowings of
$1.6 million
, or
26.1%
. The increase in interest expense on deposits was attributable to a
$363.1 million
, or
14.1%
, increase in the average balance of interest-bearing deposit accounts and a 44 basis point increase in the cost of interest-bearing deposits to
1.42%
for the
nine months ended
September 30, 2019
. The increase in borrowings was attributable to a
$36.6 million
, or
7.8%
, increase in average borrowings and a
30
basis point increase in the cost of borrowings to
2.07%
for the
nine months ended
September 30, 2019
. The increases are reflective of the higher interest rate environment and increased competition for deposits.
Net Interest Income
.
Net interest income remained largely unchanged at
$83.3 million
for the
nine months ended
September 30, 2019
, compared to $
83.2 million
for the
nine months ended
September 30, 2018
, as a
$396.0 million
, or
10.1%
, increase in our average interest-earning assets was offset by a 26 basis point decrease in our net interest margin to
2.58%
. The decrease in net interest margin was primarily due to the increased cost of our interest-bearing liabilities, which increased
42
basis points to
1.52%
for the
nine months ended
September 30, 2019
, from
1.10%
for the
nine months ended
September 30, 2018
, while yields on interest-earning assets increased
10
basis points to
3.80%
for the
nine months ended
September 30, 2019
, from
3.70%
for the
nine months ended
September 30, 2018
.
49
Table of Contents
Provision for Loan Losses
.
The provision for loan losses decreased by
$2.8 million
to a negative provision of
$750,000
for the
nine months ended
September 30, 2019
, compared to a provision of
$2.0 million
for the
nine months ended
September 30, 2018
. The negative provision was primarily related to a $1.8 million recovery on a loan previously charged-off, partially offset by a $521,000 charge-off on an impaired commercial real estate loan, and loan growth. Net recoveries for the
nine months ended
September 30, 2019
, were
$1.3 million
compared to net charge-offs of $481,000 for the
nine months ended
September 30, 2018
.
Non-interest Income
.
Non-interest income
increase
d
$3.1 million
, or
41.8%
, to
$10.6 million
for the
nine months ended
September 30, 2019
, from
$7.5 million
for the
nine months ended
September 30, 2018
, primarily due to an increase of
$2.3 million
in income on bank owned life insurance, attributable to insurance proceeds in excess of the related cash surrender value of the policies, and a
$901,000
increase in gains on securities transactions, net (which include gains on available-for-sale debt securities and gains on trading securities). For the
nine months ended
September 30, 2019
, gains on securities transactions, net, included gains of $1.5 million related to the Company’s trading portfolio, compared to gains of $714,000 in the comparative prior year period. The trading portfolio is utilized to fund the Company’s deferred compensation obligation to certain employees and directors of the Company's deferred compensation plan (the “Plan”). The participants of this Plan, at their election, defer a portion of their compensation. Gains and losses on trading securities have no effect on net income since participants benefit from, and bear the full risk of, changes in the trading securities market values. Therefore, the Company records an equal and offsetting amount in compensation expense, reflecting the change in the Company’s obligations under the Plan.
Non-interest Expense
.
Non-interest expense increased
$3.6 million
, or
6.9%
, to
$54.8 million
for the
nine months ended
September 30, 2019
, compared to
$51.3 million
for the
nine months ended
September 30, 2018
. This was due primarily to a
$2.2 million
increase in employee compensation and benefits, $742,000 of which is related to the Company's deferred compensation plan, which is described above and has no effect on net income, with the remainder attributable to increased costs associated with new hires related to a branch opening and new lending personnel, merit increases effective January 1, 2019, and higher medical benefit cost, partially offset by a decrease in equity award expense. Additionally, there was a $425,000 increase in occupancy costs, primarily attributable to higher rent expense related to a new branch opening, an increase of $690,000 in data processing costs, related to our continued strategic initiative to enhance our customers' experience and growth in the number of accounts we service, and an increase of $1.0 million in advertising expense, attributable to the timing of advertising programs and increased expenditure focused on driving growth. These increases were partially offset by decreases of $275,000 in federal insurance premiums due to a reduction in our deposit insurance assessment as a result of the utilization of credits, and $513,000 in other non-interest expense, primarily related to a decrease in Directors' equity award expense. Non-interest expense included equity award expense of $2.9 million for the
nine months ended
September 30, 2019
, as compared to $4.5 million for the
nine months ended
September 30, 2018
. The lower expense in the current period was primarily attributable to equity awards that were fully vested in the second quarter of 2019.
Income Tax Expense
.
The Company recorded income tax expense of
$9.7 million
for the
nine months ended
September 30, 2019
, compared to
$7.3 million
for the
nine months ended
September 30, 2018
. The effective tax rate for the
nine months ended
September 30, 2019
, was
24.4%
compared to
19.5%
for the
nine months ended
September 30, 2018
. The increase was primarily due to lower excess tax benefits related to the exercise or vesting of equity awards and changes in New Jersey tax laws, partially offset by $2.4 million of tax-exempt income from bank owned life insurance proceeds in excess of the cash surrender value of the policies. There were no material excess tax benefits recorded for the
nine months ended
September 30, 2019
. Excess tax benefits were $2.2 million for the
nine months ended
September 30, 2018
. Excess tax benefits will fluctuate throughout the year based on the Company's stock price and timing of employee stock option exercises and vesting of other share-based awards.
On May 15, 2019 the State of New Jersey issued a tax technical bulletin which gave guidance on which entities are to be included in a combined group. Real estate investment trusts and investment companies will be excluded from a combined group. They will continue to file separate company New Jersey tax returns. As a result of this guidance, the Company recorded an additional $559,000 of state tax expense net of federal benefit for the nine months ended September 30, 2019. The $559,000 increase was comprised of $773,000 of current tax expense, partially offset by a write-up of deferred tax assets of $214,000.
50
Table of Contents
The following table sets forth average balances, average yields and costs, and certain other information for the periods indicated.
ANALYSIS OF NET INTEREST INCOME
(Dollars in thousands)
For the Nine Months Ended
September 30, 2019
September 30, 2018
Average Outstanding Balance
Interest
Average Yield/ Rate
(1)
Average Outstanding Balance
Interest
Average Yield/ Rate
(1)
Interest-earning assets:
Loans
(2)
$
3,269,983
$
101,183
4.14
%
$
3,169,780
$
94,686
3.99
%
Mortgage-backed securities
(3)
725,879
14,082
2.59
524,904
9,269
2.36
Other securities
(3)
227,318
5,075
2.98
126,578
2,427
2.56
Federal Home Loan Bank of New York stock
25,587
1,138
5.95
25,271
1,240
6.56
Interest-earning deposits in financial institutions
63,261
1,028
2.17
69,528
722
1.39
Total interest-earning assets
4,312,028
122,506
3.80
3,916,061
108,344
3.70
Non-interest-earning assets
296,043
241,828
Total assets
$
4,608,071
$
4,157,889
Interest-bearing liabilities:
Savings, NOW, and money market accounts
$
1,906,047
$
15,452
1.08
%
$
1,652,683
$
7,146
0.58
%
Certificates of deposit
1,039,344
15,860
2.04
929,654
11,708
1.68
Total interest-bearing deposits
2,945,391
31,312
1.42
2,582,337
18,854
0.98
Borrowed funds
508,176
7,885
2.07
471,567
6,252
1.77
Total interest-bearing liabilities
3,453,567
39,197
1.52
3,053,904
25,106
1.10
Non-interest bearing deposits
382,686
408,116
Accrued expenses and other liabilities
92,122
48,596
Total liabilities
3,928,375
3,510,616
Stockholders' equity
679,696
647,273
Total liabilities and stockholders' equity
$
4,608,071
$
4,157,889
Net interest income
$
83,309
$
83,238
Net interest rate spread
(4)
2.28
%
2.60
%
Net interest-earning assets
(5)
$
858,461
$
862,157
Net interest margin
(6)
2.58
%
2.84
%
Average interest-earning assets to interest-bearing liabilities
124.86
%
128.23
%
(1)
Average yields and rates are annualized.
(2)
Includes non-accruing loans.
(3)
Securities available-for-sale are reported at amortized cost.
(4)
Net interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average cost of interest-bearing liabilities.
(5)
Net interest-earning assets represent total interest-earning assets less total interest-bearing liabilities.
(6)
Net interest margin represents net interest income divided by average total interest-earning assets.
51
Table of Contents
Comparison of Operating Results for the
Three Months Ended September 30, 2019
and
2018
Net Income.
Net income was
$13.1 million
and
$9.1 million
for the quarters ended
September 30, 2019
, and
September 30, 2018
, respectively. Significant variances from the comparable prior year quarter are as follows: an $
896,000
increase
in net interest income, a
$2.6 million
decrease
in the provision for loan losses, a
$2.1 million
increase
in non-interest income, a
$231,000
decrease
in non-interest expense, and a
$1.8 million
increase
in income tax expense.
Interest Income
.
Interest income increased
$5.1 million
, or
13.6%
, to
$42.8 million
for the quarter ended
September 30, 2019
, from
$37.7 million
for the quarter
September 30, 2018
, due to an increase in the average balance of interest-earning assets of
$425.9 million
, or
10.6%
, and a
10
basis point increase in the yields earned. Interest income on loans increased by
$2.8 million
, primarily attributable to an increase in the average loan balances of
$127.3 million
and an
18
basis point increase in the yield earned. Interest income on securities increased by
$2.3 million
, primarily attributable to an increase in the average securities balances of $314.6 million and a 14 basis point increase in the yields earned. The Company accreted interest income related to its PCI loans of
$1.1 million
for the quarter ended
September 30, 2019
, as compared to
$1.0 million
, for the quarter ended
September 30, 2018
. Interest income on loans for the quarter ended
September 30, 2019
, included loan prepayment income of $596,000, as compared to $367,000 for the quarter ended
September 30, 2018
. Also included in interest income for the quarter ended
September 30, 2019
, was $314,000 from the pay-off of a non-accrual loan.
Interest Expense
.
Interest expense increased
$4.2 million
, or
43.1%
, to
$14.0 million
for the quarter ended
September 30, 2019
, from
$9.8 million
for the quarter ended
September 30, 2018
. The increase was due to an increase in interest expense on deposits of
$2.9 million
, or
38.5%
, and an increase in interest expense on borrowings of
$1.3 million
, or
58.9%
. The increase in interest expense on deposits was attributable to a
$263.4 million
, or
9.8%
, increase in the average balance of interest-bearing deposit accounts and a 30 basis point increase in the cost of interest-bearing deposits to
1.42%
for the quarter ended
September 30, 2019
. The increase in borrowings was attributable to a
$168.5 million
, or
35.5%
, increase in average borrowings and a 32 basis point increase in the cost of borrowings to 2.17% for the quarter ended
September 30, 2019
. The increases are reflective of the higher interest rate environment and increased competition for deposits.
Net Interest Income
.
Net interest income for the quarter ended
September 30, 2019
,
increase
d
$896,000
, or
3.2%
, primarily due to a
$425.9 million
, or
10.6%
, increase in our average interest-earning assets, partially offset by an 18 basis point decrease in our net interest margin to
2.57%
. The decrease in net interest margin was primarily due to the increased cost of our interest-bearing liabilities, which increased
32
basis points to
1.55%
for the quarter ended
September 30, 2019
, from
1.23%
for the quarter ended
September 30, 2018
, while yields earned on interest-earning assets increased
10
basis points to
3.82%
for the quarter ended
September 30, 2019
, from
3.72%
for the quarter ended
September 30, 2018
.
Provision for Loan Losses
.
The provision for loan losses
decrease
d by
$2.6 million
to a negative provision of $
1.3 million
for the quarter ended
September 30, 2019
, from a provision of
$1.3 million
for the quarter ended
September 30, 2018
. The negative provision was primarily related to a $1.8 million recovery on a loan previously charged off, partially offset by a $514,000 charge-off on an impaired commercial real estate loan, and loan growth. Net recoveries were
$1.5 million
for the quarter ended
September 30, 2019
, compared to net charge-offs of $499,000 for the quarter ended
September 30, 2018
.
Non-interest Income
.
Non-interest income increased
$2.1 million
, or
79.5%
, to
$4.7 million
for the quarter ended
September 30, 2019
, from
$2.6 million
for the quarter ended
September 30, 2018
, primarily due to an increase of
$2.3 million
in income on bank owned life insurance, attributable to insurance proceeds in excess of the related cash surrender values of the policies, partially offset by a decrease of
$268,000
in gains on securities transactions, net (which include gains on available-for-sale debt securities and gains on trading securities). For the quarter ended
September 30, 2019
, gains on securities transactions, net, included gains of $28,000 related to the Company’s trading portfolio, compared to gains of $412,000 in the comparative prior year quarter. As previously noted, the trading portfolio is utilized to fund the Company’s deferred compensation obligation to certain employees and directors of the Company's deferred compensation plan, and gains and losses on trading securities have no effect on net income since participants benefit from, and bear the full risk of, changes in the trading securities market values.
52
Table of Contents
Non-interest Expense
.
Non-interest expense
decrease
d by
$231,000
, or
1.4%
, to
$16.9 million
for the quarter ended
September 30, 2019
, from
$17.1 million
for the quarter ended
September 30, 2018
. The decrease was due primarily to a decrease of $410,000 in compensation and employee benefits, $384,000 of which is related to the Company's deferred compensation plan, which is described above and has no effect on net income, lower equity award expense, and lower medical benefit costs, partially offset by higher salary expense. Additionally, there were decreases of $236,000 in federal insurance premiums due to a reduction in our deposit insurance assessment as a result of the utilization of credits, partially offset by an increase in our premium base, and $296,000 in other non-interest expense, primarily related to lower Directors' equity award expense. Partially offsetting the decreases were increases of $364,000 in data processing costs and $185,000 in advertising expense. Non-interest expense included equity award expense of $425,000 and $1.4 million for the quarters ended September 30, 2019 and September 30, 2018, respectively. The lower expense in the current quarter was primarily attributable to equity awards that were fully vested in the second quarter of 2019.
Income Tax Expense
.
The Company recorded income tax expense of
$4.8 million
for the quarter ended
September 30, 2019
, compared to
$3.1 million
for the quarter ended
September 30, 2018
. The effective tax rate for the quarter ended
September 30, 2019
, was
26.9%
compared to
25.3%
for the quarter ended
September 30, 2018
. The higher effective tax rate was due to changes in New Jersey tax laws (discussed above), and the write-off of deferred tax assets related to the exercise or vesting of equity awards recorded as income tax expense in the current quarter, partially offset by $2.4 million of tax-exempt income from bank owned life insurance proceeds in excess of the cash surrender value of the policies.
On May 15, 2019, New Jersey issued a tax technical bulletin which gave guidance on which entities are to be included in a combined group. Real Estate Investment Trusts and Investment Companies will be excluded from a combined group. They will continue to file separate company New Jersey tax returns. As a result of this guidance, the Company recorded an additional $348,000 of state tax expense net of federal benefit for the quarter ended September 30, 2019.
53
Table of Contents
The following table sets forth average balances, average yields and costs, and certain other information for the periods indicated.
ANALYSIS OF NET INTEREST INCOME
(Dollars in thousands)
For the Three Months Ended
September 30, 2019
September 30, 2018
Average Outstanding Balance
Interest
Average Yield/ Rate
(1)
Average Outstanding Balance
Interest
Average Yield/ Rate
(1)
Interest-earning assets:
Loans
(2)
$
3,329,893
$
35,285
4.20
%
$
3,202,616
$
32,443
4.02
%
Mortgage-backed securities
(3)
833,071
5,409
2.58
565,783
3,475
2.44
Other securities
(3)
208,196
1,511
2.88
160,877
1,104
2.72
Federal Home Loan Bank of New York stock
29,974
396
5.24
25,499
428
6.66
Interest-earning deposits in financial institutions
48,841
246
2.00
69,327
277
1.59
Total interest-earning assets
4,449,975
42,847
3.82
4,024,102
37,727
3.72
Non-interest-earning assets
303,406
244,191
Total assets
$
4,753,381
$
4,268,293
Interest-bearing liabilities:
Savings, NOW, and money market accounts
$
1,940,764
$
5,281
1.08
%
$
1,620,562
$
2,691
0.66
%
Certificates of deposit
1,007,163
5,235
2.06
1,064,005
4,902
1.83
Total interest-bearing deposits
2,947,927
10,516
1.42
2,684,567
7,593
1.12
Borrowed funds
643,280
3,511
2.17
474,773
2,210
1.85
Total interest-bearing liabilities
3,591,207
14,027
1.55
3,159,340
9,803
1.23
Non-interest bearing deposits
382,563
404,570
Accrued expenses and other liabilities
93,143
50,527
Total liabilities
4,066,913
3,614,437
Stockholders' equity
686,468
653,856
Total liabilities and stockholders' equity
$
4,753,381
$
4,268,293
Net interest income
$
28,820
$
27,924
Net interest rate spread
(4)
2.27
%
2.49
%
Net interest-earning assets
(5)
$
858,768
$
864,762
Net interest margin
(6)
2.57
%
2.75
%
Average interest-earning assets to interest-bearing liabilities
123.91
%
127.37
%
(1)
Average yields and rates are annualized.
(2)
Includes non-accruing loans.
(3)
Securities available-for-sale are reported at amortized cost.
(4)
Net interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average cost of interest-bearing liabilities.
(5)
Net interest-earning assets represent total interest-earning assets less total interest-bearing liabilities.
(6)
Net interest margin represents net interest income divided by average total interest-earning assets.
54
Table of Contents
Asset Quality
Purchased Credit Impaired Loans
PCI loans are recorded at estimated fair value using discounted expected future cash flows deemed to be collectible on the date acquired. Based on its detailed review of PCI loans and experience in loan workouts, management believes it has a reasonable expectation about the amount and timing of future cash flows and accordingly has classified PCI loans (
$17.4 million
at
September 30, 2019
and
$20.1 million
at
December 31, 2018
) as accruing, even though they may be contractually past due. At
September 30, 2019
, 6.5% of PCI loans were past due 30 to 89 days, and 23.5% were past due 90 days or more, as compared to 10.0% and 23.3%, respectively, at
December 31, 2018
.
Originated and Acquired loans
The following table details total originated and acquired (including held-for-sale, but excluding PCI) non-accruing loans, non-performing loans, non-performing assets, troubled debt restructurings (TDRs) on which interest is accruing, and accruing loans 30 to 89 days delinquent at
September 30, 2019
, and
December 31, 2018
(dollars in thousands):
September 30, 2019
December 31, 2018
Non-accrual loans:
Held-for-investment
Real estate loans:
Commercial
$
8,310
$
7,291
One-to-four family residential
895
1,129
Multifamily
444
566
Home equity and lines of credit
149
151
Commercial and industrial
—
25
Total non-accrual loans
9,798
9,162
Loans delinquent 90 days or more and still accruing:
Held-for-investment
Real estate loans:
Commercial
553
—
One-to-four family residential
6
33
Home equity and lines of credit
37
—
Total loans delinquent 90 days or more and still accruing
596
33
Total non-performing loans
10,394
9,195
Total non-performing assets
$
10,394
$
9,195
Non-performing loans to total loans
0.31
%
0.28
%
Non-performing assets to total assets
0.22
%
0.21
%
Loans subject to restructuring agreements and still accruing
$
14,316
$
16,390
Accruing loans 30 to 89 days delinquent
$
5,348
$
8,562
55
Table of Contents
Accruing Loans 30 to 89 Days Delinquent
Loans 30 to 89 days delinquent and on accrual status totaled
$5.3 million
and
$8.6 million
at
September 30, 2019
and
December 31, 2018
, respectively. The following table sets forth delinquencies for accruing loans by type and by amount at
September 30, 2019
and
December 31, 2018
(in thousands):
September 30, 2019
December 31, 2018
Held-for-investment
Real estate loans:
Commercial
$
2,475
$
2,377
One-to-four family residential
2,235
4,120
Multifamily
431
2,018
Home equity and lines of credit
112
—
Commercial and industrial loans
87
45
Other loans
8
2
Total delinquent accruing loans
$
5,348
$
8,562
Loans Subject to TDR Agreements
Included in non-accruing loans are loans subject to TDR agreements totaling
$4.4 million
and
$513,000
at
September 30, 2019
and
December 31, 2018
, respectively. The increase in non-accruing TDR loans was primarily due to two impaired commercial real estate loans, one with a net carrying balance of $2.8 million, designated a performing TDR during the quarter ended March 31, 2019, as payment terms of the loan were modified, and the second loan with a net carrying balance of $1.3 million, put on non-accrual status during the quarter ended June 30, 2019. At
September 30, 2019
, two of the non-accruing TDRs totaling $1.5 million were not performing in accordance with their restructured terms, and are collateralized by real estate with an aggregate estimated fair value of $2.7 million. At December 31, 2018, one of the non-accruing TDRs totaling $235,000 was not performing in accordance with its restructured terms and is collateralized by real estate with an estimated fair value of $672,000.
The Company also holds loans subject to TDR agreements that are on accrual status totaling
$14.3 million
and
$16.4 million
at
September 30, 2019
and
December 31, 2018
, respectively. At
September 30, 2019
, $13.9 million, or
97.3%
, of the
$14.3 million
of accruing loans subject to TDR agreements were performing in accordance with their restructured terms. At
December 31, 2018
, $14.8 million, or
90.1%
, of the
$16.4 million
of accruing loans subject to TDR agreements were performing in accordance with their restructured terms. Generally, the types of concessions that we make to troubled borrowers include both temporary and permanent reductions to interest rates, extensions of payment terms, and, to a lesser extent, forgiveness of principal and interest.
The following table details the amounts and categories of the loans subject to restructuring agreements by loan type as of
September 30, 2019
and
December 31, 2018
(in thousands):
September 30, 2019
December 31, 2018
Non-Accruing
Accruing
Non-Accruing
Accruing
Real estate loans:
Commercial
$
4,118
$
10,948
$
—
$
12,664
One-to-four family residential
258
2,248
361
2,324
Multifamily
41
1,002
152
1,268
Home equity and lines of credit
—
56
—
61
Commercial and industrial loans
—
61
—
73
$
4,417
$
14,315
$
513
$
16,390
Performing in accordance with restructured terms
65.2
%
97.3
%
54.2
%
90.1
%
56
Table of Contents
Liquidity and Capital Resources
Liquidity
. The objective of our liquidity management is to ensure the availability of sufficient funds to meet financial commitments and to take advantage of lending and investment opportunities. The Bank manages liquidity in order to meet deposit withdrawals on demand or at contractual maturity, to repay borrowings as they mature, and to fund new loans and investments as opportunities arise.
The Bank's primary sources of funds are deposits, principal and interest payments on loans and securities, borrowed funds, the proceeds from maturing securities and short-term investments, and to a lesser extent, proceeds from the sales of loans and securities and wholesale borrowings. The scheduled amortization of loans and securities, as well as proceeds from borrowed funds, are predictable sources of funds. Other funding sources, however, such as deposit inflows and loan prepayments are greatly influenced by market interest rates, economic conditions, and competition. The Bank is a member of the FHLBNY, which provides an additional source of short-term and long-term funding. The Bank also has short-term borrowing capabilities with the Federal Reserve Bank of New York. The Bank’s borrowed funds, excluding lease obligations floating rate advances and overnight line of credit, were
$685.0 million
at
September 30, 2019
, and had a weighted average interest rate of
2.20%
. A total of $245.0 million of these borrowings will mature in less than one year. Borrowed funds, excluding floating rate advances and overnight line of credit, were $403.5 million at
December 31, 2018
. The Bank has the ability to obtain additional funding from the FHLB and Federal Reserve Bank of New York's discount window of approximately
$1.48 billion
utilizing unencumbered securities of
$372.6 million
and loans of
$1.11 billion
at
September 30, 2019
. The Bank also has a Letter of Credit (“LOC”) of up to $50.0 million with the FHLBNY for the purpose of collateralizing municipal deposits. Any amount pledged for such deposits under the LOC reduces the Bank's available borrowing amount under the FHLB advance agreement. The Bank expects to have sufficient funds available to meet current commitments in the normal course of business.
Northfield Bancorp, Inc. (standalone) is a separate legal entity from the Bank and must provide for its own liquidity to pay dividends, repurchase its stock, and for other corporate purposes. Northfield Bancorp, Inc.'s primary source of liquidity is dividend payments from the Bank. At
September 30, 2019
, Northfield Bancorp, Inc. (standalone) had liquid assets of $31.5 million.
Capital Resources
. Federal regulations require federally insured depository institutions to meet several minimum capital standards: a common equity Tier 1 capital to risk-based assets ratio of 4.5%, a Tier 1 capital to risk-based assets ratio of 6.0%, a total capital to risk-based assets of 8.0%, and a 4.0% Tier 1 capital to total assets leverage ratio. In addition to establishing the minimum regulatory capital requirements, the regulations limit capital distributions and certain discretionary bonus payments to management if the institution does not hold a “capital conservation buffer” consisting of 2.5% of common equity Tier 1 capital to risk-weighted assets in addition to the amount necessary to meet its minimum risk-based capital requirements.
As a result of the recently enacted Economic Growth, Regulatory Relief, and Consumer Protection Act, the federal banking agencies were required to develop a “Community Bank Leverage Ratio” (the ratio of a bank’s tangible equity capital to average total consolidated assets) for financial institutions with assets of less than $10 billion. A “qualifying community bank” that exceeds this ratio will be deemed to be in compliance with all other capital and leverage requirements, including the capital requirements to be considered “well capitalized” under Prompt Corrective Action statutes. The federal banking agencies were required to set the minimum capital for the new Community Bank Leverage Ratio at not less than 8% and not more than 10%, and approved 9% as the minimum capital for the Community Bank Leverage Ratio, effective March 31, 2020. A financial institution can elect to be subject to this new definition.
57
Table of Contents
At
September 30, 2019
and
December 31, 2018
, as set forth in the following table, both the Bank and Northfield Bancorp, Inc. exceeded all of the regulatory capital requirements to which they were subject at such dates.
Northfield Bank
Northfield Bancorp, Inc.
For Capital Adequacy Purposes
(1)
For Well Capitalized Under Prompt Corrective Action Provisions
As of September 30, 2019:
Common equity Tier 1 capital (to risk-weighted assets)
15.09%
16.62%
6.375%
6.50%
Tier 1 leverage
12.44%
13.69%
4.000%
5.00%
Tier I capital (to risk-weighted assets)
15.09%
16.62%
7.875%
8.00%
Total capital (to risk-weighted assets)
15.83%
17.36%
9.875%
10.00%
As of December 31, 2018:
Common equity Tier 1 capital (to risk-weighted assets)
16.00%
17.17%
6.375%
6.50%
Tier 1 leverage
13.81%
14.82%
4.000%
5.00%
Tier I capital (to risk-weighted assets)
16.00%
17.17%
7.875%
8.00%
Total capital (to risk-weighted assets)
16.76%
17.93%
9.875%
10.00%
(1)
Includes capital conservation buffer at September 30, 2019 and December 31, 2018.
Off-Balance Sheet Arrangements and Contractual Obligations
In the normal course of operations, the Company engages in a variety of financial transactions that, in accordance with U.S. GAAP, are not recorded in the financial statements. These transactions primarily relate to lending commitments. These arrangements are not expected to have a material impact on the Company's results of operations or financial condition.
The following table shows the contractual obligations of the Company by expected payment period as of
September 30, 2019
(in thousands):
Contractual Obligations
Total
Less than One Year
One to less than Three Years
Three to less than Five Years
More than Five Years
Borrowings
$
691,161
$
251,161
(1)
$
290,000
$
137,500
$
12,500
Operating lease liabilities
58,749
6,183
11,082
9,683
31,801
Commitments to originate loans
70,353
70,353
—
—
—
Commitments to fund unused lines of credit
137,848
137,848
—
—
—
(1)
Includes $6.1 million of floating rate advances.
Commitments to fund unused lines of credit are agreements to lend additional funds to customers as long as there have been no violations of any of the conditions established in the agreements (original or restructured). Commitments to originate loans generally have a fixed expiration or other termination clauses, which may or may not require payment of a fee. Since some of these loan commitments are expected to expire without being drawn upon, total commitments do not necessarily represent future cash requirements.
For further information regarding our off-balance sheet arrangements and contractual obligations, see "Management’s Discussion and Analysis of Financial Condition and Results of Operations" in the Company’s Annual Report on Form 10-K for the year ended
December 31, 2018
.
Recent Accounting Standards
See Note 12 of the Notes to the Unaudited Consolidated Financial Statements for information about recent accounting developments.
58
Table of Contents
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Management of Market Risk
General
. A majority of our assets and liabilities are monetary in nature. Consequently, our most significant form of market risk is interest rate risk. Our assets, consisting primarily of mortgage-related securities and loans, generally have longer maturities than our liabilities, which consist primarily of deposits and wholesale borrowings. As a result, a principal part of our business strategy involves managing interest rate risk and limiting the exposure of our net interest income to changes in market interest rates. Accordingly, our Board of Directors has established a Management Asset-Liability Committee, comprised of our SVP & Chief Investment Officer and Treasurer, who chairs this Committee, our President and Chief Executive Officer, our EVP & Chief Administrative Officer, EVP & Chief Financial Officer, EVP & Chief Lending Officer, EVP Operations, EVP Branch Administration and Business Development, SVP and Chief Risk Officer, and SVP & Director of Marketing, and other officers and staff as necessary or appropriate. This committee is responsible for, among other things, evaluating the interest rate risk inherent in our assets and liabilities, for recommending to the risk management committee of our Board of Directors the level of risk that is appropriate given our business strategy, operating environment, capital, liquidity and performance objectives, and for managing this risk consistent with the guidelines approved by the Board of Directors.
We seek to manage our interest rate risk in order to minimize the exposure of our earnings and capital to changes in interest rates. As part of our ongoing asset-liability management, we currently use the following strategies to manage our interest rate risk:
•
originating multifamily loans and commercial real estate loans that generally have shorter maturities than one-to-four family residential real estate loans and have higher interest rates that generally reset from five to ten years;
•
investing in investment grade corporate securities and mortgage-backed securities; and
•
obtaining general financing through lower-cost core deposits, brokered deposits, and longer-term FHLB advances and repurchase agreements.
Shortening the average term of our interest-earning assets by increasing our investments in shorter-term assets, as well as originating loans with variable interest rates, helps to match the maturities and interest rates of our assets and liabilities better, thereby reducing the exposure of our net interest income to changes in market interest rates.
Net Portfolio Value Analysis
.
We compute amounts by which the net present value of our assets and liabilities (net portfolio value or NPV) would change in the event market interest rates changed over an assumed range of rates. Our simulation model uses a discounted cash flow analysis to measure the interest rate sensitivity of NPV. Depending on current market interest rates, we estimate the economic value of these assets and liabilities under the assumption that interest rates experience an instantaneous and sustained increase of 100, 200, 300, or 400 basis points, or a decrease of 100 and 200 basis points, which is based on the current interest rate environment. A basis point equals one-hundredth of one percent, and 100 basis points equals one percent. An increase in interest rates from 3% to 4% would mean, for example, a 100 basis point increase in the “Change in Interest Rates” column below.
Net Interest Income Analysis.
In addition to NPV calculations, we analyze our sensitivity to changes in interest rates through our net interest income model. Net interest income is the difference between the interest income we earn on our interest-earning assets, such as loans and securities, and the interest we pay on our interest-bearing liabilities, such as deposits and borrowings. In our model, we estimate what our net interest income would be for a twelve-month period. Depending on current market interest rates we then calculate what the net interest income would be for the same period under the assumption that interest rates experience an instantaneous and sustained increase or decrease of 100, 200, 300, or 400 basis points, or a decrease of 100 and 200 basis points, which is based on the current interest rate environment.
The following tables set forth, as of
September 30, 2019
and
December 31, 2018
, our calculation of the estimated changes in our NPV, NPV ratio, and percent change in net interest income that would result from the designated instantaneous and sustained changes in interest rates (dollars in thousands). Computations of prospective effects of hypothetical interest rate changes are based on numerous assumptions, including relative levels of market interest rates, loan prepayments and deposit repricing characteristics including decay rates, and correlations to movements in interest rates, and should not be relied on as indicative of actual results.
59
Table of Contents
NPV at September 30, 2019
Change in Interest Rates (basis points)
Estimated Present Value of Assets
Estimated Present Value of Liabilities
Estimated NPV
Estimated Change In NPV
Estimated Change in NPV %
Estimated NPV/Present Value of Assets Ratio
Next 12 Months Net Interest Income Percent Change
Months 13-24 Net Interest Income Percent Change
+400
$
4,420,482
$
3,737,445
$
683,037
$
(139,916
)
(17.00
)%
15.45
%
(14.48
)%
1.71
%
+300
4,520,870
3,804,088
716,782
(106,171
)
(12.90
)
15.85
(10.49
)
1.63
+200
4,629,268
3,873,297
755,971
(66,982
)
(8.14
)
16.33
(6.27
)
2.03
+100
4,737,823
3,945,660
792,163
(30,790
)
(3.74
)
16.72
(2.77
)
1.68
—
4,844,782
4,021,829
822,953
—
—
16.99
—
—
(100)
4,958,624
4,108,066
850,558
27,605
3.35
17.15
(0.47
)
(4.88
)
(200)
5,115,048
4,193,007
922,041
99,088
12.04
18.03
(0.91
)
(7.31
)
NPV at December 31, 2018
Change in Interest Rates (basis points)
Estimated Present Value of Assets
Estimated Present Value of Liabilities
Estimated NPV
Estimated Change In NPV
Estimated Change in NPV %
Estimated NPV/Present Value of Assets Ratio
Next 12 Months Net Interest Income Percent Change
Months 13-24 Net Interest Income Percent Change
+400
$
4,031,597
$
3,319,312
$
712,285
$
(149,277
)
(17.33
)%
17.67
%
(16.59
)%
(3.47
)%
+300
4,124,540
3,376,794
747,746
(113,816
)
(13.21
)
18.13
(12.38
)
(2.56
)
+200
4,223,771
3,436,264
787,507
(74,055
)
(8.60
)
18.64
(7.84
)
(0.97
)
+100
4,324,514
3,498,443
826,071
(35,491
)
(4.12
)
19.10
(3.71
)
(0.11
)
—
4,425,777
3,564,215
861,562
—
—
19.47
—
—
(100)
4,527,603
3,637,211
890,392
28,830
3.35
19.67
1.27
(2.13
)
(200)
4,633,379
3,712,989
920,390
58,828
6.83
19.86
2.03
(3.03
)
At
September 30, 2019
, in the event of a 200 basis point decrease in interest rates, we would experience an
12.04%
increase in estimated net portfolio value and a
0.91%
decrease in net interest income in year one and a
7.31%
decrease in net interest income in year two. In the event of a 400 basis point increase in interest rates, we would experience a
17.00%
decrease in estimated net portfolio value and a
14.48%
decrease in net interest income in year one and a
1.71%
increase in net interest income in year two. Our policies provide that, in the event of a 200 basis point decrease or less in interest rates, our net present value ratio should decrease by no more than 300 basis points and 10%, and in the event of a 400 basis point increase or less, our net present value should decrease by no more than 475 basis points and 35%. In the event of a 200 basis point decrease or less, our projected net interest income should decrease by no more than 10% in year one and 25% in year two, and in the event of a 400 basis point increase or less, our projected net interest income should decrease by no more than 30% in year one and 20% in year two. However, when the federal funds rate is low and negative rate shocks do not produce meaningful results, management may temporarily suspend use of guidelines for negative interest rate shocks. At
September 30, 2019
, we were in compliance with all board approved policies with respect to interest rate risk management.
Certain shortcomings are inherent in the methodologies used in determining interest rate risk through changes in net portfolio value and net interest income. Our model requires us to make certain assumptions that may or may not reflect the manner in which actual yields and costs respond to changes in market interest rates. However, we also apply consistent parallel yield curve shifts (in both directions) to determine possible changes in net interest income if the theoretical yield curve shifts occurred gradually. Net interest income analysis also adjusts the asset and liability repricing analysis based on changes in prepayment rates resulting from the parallel yield curve shifts. In addition, the net portfolio value and net interest income information presented assume that the composition of our interest-sensitive assets and liabilities existing at the beginning of a period remains constant over the period being measured and assume that a particular change in interest rates is reflected uniformly across the yield curve regardless of the duration or repricing of specific assets and liabilities. Accordingly, although interest rate risk calculations provide an indication of our interest rate risk exposure at a particular point in time, such measurements are not intended to and do not provide a precise forecast of the effect of changes in market interest rates on our net portfolio value or net interest income and will differ from actual results.
60
Table of Contents
ITEM 4. CONTROLS AND PROCEDURES
An evaluation was performed under the supervision and with the participation of the Company’s management, including the President and Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended) as of
September 30, 2019
. Based on that evaluation, the Company’s management, including the President and Chief Executive Officer and the Chief Financial Officer, concluded that the Company’s disclosure controls and procedures were effective.
During the
three months ended September 30, 2019
, there were no changes in the Company’s internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.
61
Table of Contents
PART II
ITEM 1.
LEGAL PROCEEDINGS
The Company and subsidiaries are subject to various legal actions arising in the normal course of business. In the opinion of management, the resolution of these legal actions is not expected to have a material adverse effect on the Company’s consolidated financial condition or results of operations.
ITEM 1A. RISK FACTORS
During the quarter ended
September 30, 2019
, there have been no material changes to the risk factors as previously disclosed in our Annual Report on Form 10-K for the fiscal year ended
December 31, 2018
, as filed with the Securities and Exchange Commission, or as previously disclosed in our other filings with the Securities and Exchange Commission.
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
(a)
Unregistered Sale of Equity Securities
. There were no sales of unregistered securities during the period covered by this report.
(b)
Use of Proceeds
. Not applicable.
(c)
Repurchases of Our Equity Securities
.
The following table shows the Company’s repurchase of its common stock for the three months ended
September 30, 2019
.
Period
(a) Total Number of Shares Purchased
(b) Average Price Paid per Share
(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs
(1)
(d) Approximate Dollar Value of Shares that May Yet be Purchased Under the Plans or Programs
(1)
July 1, 2019 through July 31, 2019
4,605
$
14.16
465
$
27,128,220
August 1, 2019 through August 31, 2019
299,300
15.41
299,300
22,519,365
September 1, 2019 through September 30, 2019
61,200
15.61
61,200
21,567,237
Total
365,105
15.31
360,965
(1)
On April 24, 2019, the Company's Board of Directors approved a $37.2 million stock repurchase program under which the Company is authorized to repurchase shares and anticipates conducting such repurchases in accordance with Rule 10b5-1 of the Securities and Exchange Commission. The timing of the repurchases will depend on certain factors, including but not limited to, market conditions and prices, the Company’s liquidity and capital requirements, and alternative uses of capital. Any repurchased shares will be held as treasury stock and will be available for general corporate purposes. The repurchases may be suspended, terminated or modified at any time for any reason, including market conditions, the cost of repurchasing shares, the availability of alternative investment opportunities, liquidity, and other factors deemed appropriate. The Company is not obligated to purchase any particular number of shares.
ITEM 3.
DEFAULTS UPON SENIOR SECURITIES
None
ITEM
4. MINE SAFETY
DISCLOSURES
Not applicable
ITEM 5.
OTHER INFORMATION
None
62
Table of Contents
ITEM 6.
EXHIBITS
The following exhibits required by Item 601 of Regulation S-K are included with this Quarterly Report on Form 10-Q.
Exhibit Number
Description
10.1
Northfield Bancorp, Inc 2019 Equity Incentive Plan (1)
31.1
Certification of Steven M. Klein, President and Chief Executive Officer, Pursuant to Rule 13a-14(a) and Rule 15d-14(a)
31.2
Certification of William R. Jacobs, Chief Financial Officer, Pursuant to Rule 13a-14(a) and Rule 15d-14(a)
32
Certification of Steven M. Klein, President and Chief Executive Officer, and William R. Jacobs, Chief Financial Officer, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS
XBRL (Extensible Business Reporting Language) Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH
Inline XBRL Taxonomy Extension Schema Document.
101.CAL
Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF
Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB
Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE
Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104
Cover page information from the Company's Quarterly Report on Form 10-Q filed August 9, 2019, formatted in Inline XBRL
(1) Incorporated by reference to Appendix A to the Company's Definitive Proxy Statement for its May 22, 2019, Annual Meeting, as filed with the Securities and Exchange Commission on April 9, 2019
63
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
NORTHFIELD BANCORP, INC.
(Registrant)
Date:
November 8, 2019
/s/ Steven M. Klein
Steven M. Klein
President and Chief Executive Officer
/s/ William R. Jacobs
William R. Jacobs
Executive Vice President and Chief Financial Officer
(Principal Financial and Accounting Officer)
64