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Note 6 - Loans Held for Sale (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Loans Held For Sale [Abstract]
Number of Loans Held for Sale	0ffic_NumberOfLoansHeldForSale	0ffic_NumberOfLoansHeldForSale

X

- Details

Name:	ffic_LoansHeldForSaleAbstract
Namespace Prefix:	ffic_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of loans an entity has held for sale.

+ References

No definition available.

+ Details

Name:	ffic_NumberOfLoansHeldForSale
Namespace Prefix:	ffic_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration