Note 4 - Loans (Detail) (USD $)	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012	Sep. 30, 2012	Sep. 30, 2011
Carrying Amount Transferred To Held-for-sale	$ 171,052,000
Loans Held For Sale Write Downs Charged To Allowance For Loan Loss	80,260,000	1,596,000		82,647,000	1,796,000
Disposal Of Loans Held For Sale			(4,200,000)
Identified for Accelerated Disposition [Member]
Carrying Amount Transferred To Held-for-sale	171,100,000
Received After Transfer to Held-For-Sale [Member]
Payments Received On Loans Held For Sale	$ 781,000