Note 5 - Loans (Details) - Net loan charge-offs: (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	$ 2,172	$ 4,719	$ 8,249	$ 10,445
Multi-Family Residential [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	1,207	1,078	2,684	2,082
Commercial Real Estate Loans [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	(160)	387	441	2,097
One-To-Four Family - Mixed-Use Property [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	471	838	3,024	2,250
One-To-Four Family - Residential [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	(75)	44	585	869
Co-Operative Apartments [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	(4)	1	70	43
Construction [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	70	2,207	304	2,441
Small Business Administration [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	103	138	277	242
Commercial Business And Other [Member]
Note 5 - Loans (Details) - Net loan charge-offs: [Line Items]
Net loan charge-offs	$ 560	$ 26	$ 864	$ 421