Note 5 - Loans (Detail) - Troubled debt restructurings that are performing according to their restructured terms: (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Number of contracts	27	24
Recorded investment (in Dollars)	$ 20,484	$ 19,901
Multi-Family Residential [Member]
Number of contracts	9	8
Recorded investment (in Dollars)	2,816	2,347
Commercial Real Estate Loans [Member]
Number of contracts	6	5
Recorded investment (in Dollars)	8,698	8,499
One-To-Four Family - Mixed-Use Property [Member]
Number of contracts	7	7
Recorded investment (in Dollars)	2,326	2,336
One-To-Four Family - Residential [Member]
Number of contracts	1	1
Recorded investment (in Dollars)	372	374
Construction [Member]
Number of contracts	1	1
Recorded investment (in Dollars)	3,137	3,805
Commercial Business And Other [Member]
Number of contracts	3	2
Recorded investment (in Dollars)	$ 3,135	$ 2,540