2.4.0.8056 - Disclosure - Note 5 - Loans (Details) - Net loan charge-offs:truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$c20_From1Apr2013To30Jun2013http://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$c21_From1Apr2012To30Jun2012http://www.sec.gov/CIK0000923139duration2012-04-01T00:00:002012-06-30T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDfalsefalse$c22_From1Jan2013To30Jun2013http://www.sec.gov/CIK0000923139duration2013-01-01T00:00:002013-06-30T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDfalsefalse$c23_From1Jan2012To30Jun2012http://www.sec.gov/CIK0000923139duration2012-01-01T00:00:002012-06-30T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]2false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse21720002172USD$falsetruefalse2truefalsefalse47190004719USD$falsetruefalse3truefalsefalse82490008249USD$falsetruefalse4truefalsefalse1044500010445USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs3false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5false USDtruefalse$c287_From1Apr2013To30Jun2013_MultiFamilyResidentialMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseMulti-Family Residential [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_MultiFamilyResidentialMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Multi-Family Residential [Member]4true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]5false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse12070001207USD$falsefalsefalse2truefalsefalse10780001078USD$falsefalsefalse3truefalsefalse26840002684USD$falsefalsefalse4truefalsefalse20820002082USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs6false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse9false USDtruefalse$c290_From1Apr2013To30Jun2013_CommercialRealEstateLoansMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCommercial Real Estate Loans [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_CommercialRealEstateLoansMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Commercial Real Estate Loans [Member]7true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]8false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse-160000-160USD$falsefalsefalse2truefalsefalse387000387USD$falsefalsefalse3truefalsefalse441000441USD$falsefalsefalse4truefalsefalse20970002097USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs9false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse13false USDtruefalse$c292_From1Apr2013To30Jun2013_OneToFourFamilyMixedUsePropertyMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseOne-To-Four Family - Mixed-Use Property [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_OneToFourFamilyMixedUsePropertyMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0One-To-Four Family - Mixed-Use Property [Member]10true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]11false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse471000471USD$falsefalsefalse2truefalsefalse838000838USD$falsefalsefalse3truefalsefalse30240003024USD$falsefalsefalse4truefalsefalse22500002250USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs12false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse17false USDtruefalse$c294_From1Apr2013To30Jun2013_OneToFourFamilyResidentialMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseOne-To-Four Family - Residential [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_OneToFourFamilyResidentialMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0One-To-Four Family - Residential [Member]13true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]14false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse-75000-75USD$falsefalsefalse2truefalsefalse4400044USD$falsefalsefalse3truefalsefalse585000585USD$falsefalsefalse4truefalsefalse869000869USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs15false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse21false USDtruefalse$c297_From1Apr2013To30Jun2013_CoOperativeApartmentsMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCo-Operative Apartments [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_CoOperativeApartmentsMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Co-Operative Apartments [Member]16true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]17false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse-4000-4USD$falsefalsefalse2truefalsefalse10001USD$falsefalsefalse3truefalsefalse7000070USD$falsefalsefalse4truefalsefalse4300043USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs18false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse25false USDtruefalse$c300_From1Apr2013To30Jun2013_ConstructionMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseConstruction [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_ConstructionMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Construction [Member]19true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]20false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse7000070USD$falsefalsefalse2truefalsefalse22070002207USD$falsefalsefalse3truefalsefalse304000304USD$falsefalsefalse4truefalsefalse24410002441USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs21false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse29false USDtruefalse$c303_From1Apr2013To30Jun2013_SmallBusinessAdministrationMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseSmall Business Administration [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_SmallBusinessAdministrationMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Small Business Administration [Member]22true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]23false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse103000103USD$falsefalsefalse2truefalsefalse138000138USD$falsefalsefalse3truefalsefalse277000277USD$falsefalsefalse4truefalsefalse242000242USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offs24false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse33false USDtruefalse$c306_From1Apr2013To30Jun2013_CommercialBusinessAndOtherMemberhttp://www.sec.gov/CIK0000923139duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCommercial Business And Other [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiffic_CommercialBusinessAndOtherMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Commercial Business And Other [Member]25true 3ffic_Note5LoansDetailsNetloanchargeoffsLineItemsffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]26false 4ffic_FinancingReceivableAllowanceForCreditLossesWriteOffsNetOfRecoveriesffic_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse560000560USD$falsetruefalse2truefalsefalse2600026USD$falsetruefalse3truefalsefalse864000864USD$falsetruefalse4truefalsefalse421000421USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of net loan charge-offs of financing receivables during the period.No definition available.false2Net loan charge-offsfalseNote 5 - Loans (Details) - Net loan charge-offs: (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://flushingbank.com/role/NetloanchargeoffsTable426