Note 7 - Other Real Estate Owned (Details) - Gross Gains, Gross Losses and Write-Downs of Oreo Reported in the Consolidated Statements of Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Gross Gains, Gross Losses and Write-Downs of Oreo Reported in the Consolidated Statements of Income [Abstract]
Gross gains	$ 216ffic_GrossGainsOnSalesOfOtherRealEstate	$ 54ffic_GrossGainsOnSalesOfOtherRealEstate
Gross losses	(6)	(30)
Write-down of carrying value		(54)
Total net (loss) gain	$ 210	$ (30)

The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.14(d))

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 14

-Subparagraph d

-Article 9

Name:	us-gaap_GainsLossesOnSalesOfOtherRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration