Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Terms of the Securities Issued by the Trusts (Capital Securities [Member])	12 Months Ended
	Dec. 31, 2013
Flushing Financial Capital Trust II [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Terms of the Securities Issued by the Trusts [Line Items]
Initial Rate	7.14%
First Reset Date	Sep. 01, 2012
Spread over 3-month LIBOR	1.41%
Maturity Date	Sep. 01, 2037
Flushing Financial Capital Trust III [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Terms of the Securities Issued by the Trusts [Line Items]
Initial Rate	6.89%
First Reset Date	Jun. 15, 2012
Spread over 3-month LIBOR	1.44%
Maturity Date	Sep. 15, 2037
Flushing Financial Capital Trust IV [Member]
Note 9 - Borrowed Funds and Securities Sold Under Agreements to Repurchase (Details) - Terms of the Securities Issued by the Trusts [Line Items]
Initial Rate	6.85%
First Reset Date	Jul. 30, 2012
Spread over 3-month LIBOR	1.42%
Maturity Date	Jul. 30, 2037