Note 4 - Loans Receivable (Detail) - Troubled Debt Restructurings ("TDRs") (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Number of TDR loans	34	57
Balance (in Dollars)	$ 8,530	$ 13,874
Accruing Troubled Debt Restructurings [Member] | One-to-Four-Family Residential [Member]
Number of TDR loans	11	15
Balance (in Dollars)	1,105	1,349
Accruing Troubled Debt Restructurings [Member] | Home Equity and Second Mortgage [Member]
Number of TDR loans	1	3
Balance (in Dollars)	19	68
Accruing Troubled Debt Restructurings [Member] | Multifamily Residential [Member]
Number of TDR loans	1	1
Balance (in Dollars)	3,466	3,488
Accruing Troubled Debt Restructurings [Member] | Commercial Real Estate [Member]
Number of TDR loans	1
Balance (in Dollars)	1,260
Accruing Troubled Debt Restructurings [Member] | Other Construction and Land [Member]
Number of TDR loans		5
Balance (in Dollars)		282
Accruing Troubled Debt Restructurings [Member] | Consumer Loans [Member]
Number of TDR loans	3
Balance (in Dollars)	7
Accruing Troubled Debt Restructurings [Member] | Consumer [Member]
Number of TDR loans		7
Balance (in Dollars)		20
Accruing Troubled Debt Restructurings [Member]
Number of TDR loans	17	31
Balance (in Dollars)	5,857	5,207
Nonaccrual Troubled Debt Restructurings [Member] | One-to-Four-Family Residential [Member]
Number of TDR loans	6	11
Balance (in Dollars)	555	1,134
Nonaccrual Troubled Debt Restructurings [Member] | Home Equity and Second Mortgage [Member]
Number of TDR loans	3	4
Balance (in Dollars)	75	133
Nonaccrual Troubled Debt Restructurings [Member] | Multifamily Residential [Member]
Number of TDR loans		1
Balance (in Dollars)		1,399
Nonaccrual Troubled Debt Restructurings [Member] | Commercial Real Estate [Member]
Number of TDR loans	2	6
Balance (in Dollars)	580	4,759
Nonaccrual Troubled Debt Restructurings [Member] | Other Construction and Land [Member]
Number of TDR loans	6	4
Balance (in Dollars)	1,463	1,242
Nonaccrual Troubled Debt Restructurings [Member]
Number of TDR loans	17	26
Balance (in Dollars)	2,673	8,667
One-to-Four-Family Residential [Member]
Number of TDR loans	17	26
Balance (in Dollars)	1,660	2,483
Home Equity and Second Mortgage [Member]
Number of TDR loans	4	7
Balance (in Dollars)	94	201
Multifamily Residential [Member]
Number of TDR loans	1	2
Balance (in Dollars)	3,466	4,887
Commercial Real Estate [Member]
Number of TDR loans	3	6
Balance (in Dollars)	1,840	4,759
Other Construction and Land [Member]
Number of TDR loans	6	9
Balance (in Dollars)	1,463	1,524
Consumer Loans [Member]
Number of TDR loans	3
Balance (in Dollars)	7
Consumer [Member]
Number of TDR loans		7
Balance (in Dollars)		$ 20