Note 6 - Loans held for sale (Details) - Delinquent and non-performing loans sold during the period indicated: (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Note 6 - Loans held for sale (Details) - Delinquent and non-performing loans sold during the period indicated: [Line Items]
Loans sold	7	28	61	60
Proceeds	$ 4,326	$ 15,423	$ 22,876	$ 33,060
Net charge-offs	(178)	(3,299)	(4,558)	(5,044)
Net gain (loss)	1	(8)	(40)	31
Multi-Family Residential [Member]
Note 6 - Loans held for sale (Details) - Delinquent and non-performing loans sold during the period indicated: [Line Items]
Loans sold	2	14	17	26
Proceeds	2,079	11,031	9,138	18,102
Net charge-offs	65	(2,295)	(1,036)	(2,683)
Net gain (loss)		(8)	6	23
Commercial Real Estate Loans [Member]
Note 6 - Loans held for sale (Details) - Delinquent and non-performing loans sold during the period indicated: [Line Items]
Loans sold	1	2	8	8
Proceeds	760	750	4,223	4,619
Net charge-offs		(65)	(564)	(432)
Net gain (loss)	6		6
One-To-Four Family - Mixed-Use Property [Member]
Note 6 - Loans held for sale (Details) - Delinquent and non-performing loans sold during the period indicated: [Line Items]
Loans sold	4	12	34	21
Proceeds	1,487	3,642	9,449	7,085
Net charge-offs	(243)	(939)	(2,773)	(1,736)
Net gain (loss)	(5)		(52)
Commercial Business And Other [Member]
Note 6 - Loans held for sale (Details) - Delinquent and non-performing loans sold during the period indicated: [Line Items]
Loans sold			2	2
Proceeds			66	714
Net charge-offs			(185)	(136)
Net gain (loss)				8
Construction [Member]
Note 6 - Loans held for sale (Details) - Delinquent and non-performing loans sold during the period indicated: [Line Items]
Loans sold				3
Proceeds				2,540
Net charge-offs				$ (57)