2.4.0.8050 - Disclosure - Note 5 - Loans (Details) - Summary of interest foregone on non-accrual loans and loans classified as TDR: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$1true 1ffic_SummaryOfInterestForegoneOnNonAccrualLoansAndLoansClassifiedAsTdrAbstractffic_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Summary of interest foregone on non-accrual loans and loans classified as TDR: [Abstract]2false 2ffic_LoansAndLeasesReceivableImpairedTroubledDebtAndNonAccrualLoansInterestIncomeffic_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse16970001697USD$falsetruefalse2truefalsefalse22950002295USD$falsetruefalse3truefalsefalse35100003510USD$falsetruefalse4truefalsefalse47330004733USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe gross interest income that would have been recorded in the period on troubled debt restructurings and nonaccrual loans, if the loans had been current in accordance with their original terms and had been outstanding throughout the period or since origination, if held for part of the period.No definition available.false2Interest income that would have been recognized had the loans performed in accordance with their original terms3false 2ffic_LoansAndLeasesReceivableTroubledDebtAndNonAccrualLoansInterestIncomeRecognizedffic_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1truefalsefalse220000220falsefalsefalse2truefalsefalse218000218falsefalsefalse3truefalsefalse496000496falsefalsefalse4truefalsefalse492000492falsefalsefalsexbrli:monetaryItemTypemonetaryInterest income from troubled debt and non-accrual loans which was recognized in the results of operations.No definition available.false2Less: Interest income included in the results of operations4false 3ffic_LoansAndLeasesReceivableTroubledDebtAndNonAccrualLoansInterestForegoneffic_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse14770001477USD$falsetruefalse2truefalsefalse20770002077USD$falsetruefalse3truefalsefalse30140003014USD$falsetruefalse4truefalsefalse42410004241USD$falsetruefalsexbrli:monetaryItemTypemonetaryInterest income, relating to troubled debt and non-accrual loans, that would have been recognized had the loans performed in accordance with their original terms less the amount of interest income recognized in the results of operations. This amount represents the total foregone interest.No definition available.true2Total foregone interestfalseNote 5 - Loans (Details) - Summary of interest foregone on non-accrual loans and loans classified as TDR: (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://flushingbank.com/role/SummaryofinterestforegoneonnonaccrualloansandloansclassifiedasTDRTable44