Note 3 - Loans (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 84,086,000	$ 111,062,000
Impaired Financing Receivable, Recorded Investment	128,600,000	190,300,000
Impaired Financing Receivable, Average Recorded Investment	148,900,000	191,200,000
Multi-Family Residential [Member]
Financing Receivable, Modifications, Number of Contracts Transferred To Non-Accrual	3
Financing Receivable, Modifications, Recorded Investment Transferred To Non-Accrual	6,900,000
Commercial Business [Member]
Financing Receivable, Modifications, Number of Contracts Transferred To Non-Accrual	1	1
Financing Receivable, Modifications, Recorded Investment Transferred To Non-Accrual	400,000	3,300,000
Construction [Member]
Financing Receivable, Modifications, Number of Contracts Transferred To Non-Accrual		1
Financing Receivable, Modifications During Period, Recorded Investment		11,500,000
One-To-Four Family - Mixed-Use Property [Member]
Financing Receivable, Modifications, Number of Contracts Transferred To Non-Accrual		2
Financing Receivable, Modifications, Recorded Investment Transferred To Non-Accrual		$ 700,000