Note 5 - Loans (Detail) - Net loan charge-offs: (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net loan charge-offs	$ 6,077	$ 5,726
Multi-Family Residential [Member]
Net loan charge-offs	1,477	1,004
Commercial Real Estate Loans [Member]
Net loan charge-offs	601	1,710
One-To-Four Family - Mixed-Use Property [Member]
Net loan charge-offs	2,553	1,412
One-To-Four Family - Residential [Member]
Net loan charge-offs	660	825
Co-Operative Apartments [Member]
Net loan charge-offs	74	42
Construction [Member]
Net loan charge-offs	234	234
Small Business Administration [Member]
Net loan charge-offs	174	104
Commercial Business And Other [Member]
Net loan charge-offs	$ 304	$ 395