Note 1 - Nature of Operations (Details)	12 Months Ended
Dec. 31, 2013
Disclosure Text Block [Abstract]
Number of Merged Entities	2

Number of entities merged as a result of business combination.

No definition available.

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