Note 6 - Other Real Estate Owned (Details) - Activity in the Valuation Allowance for Other Real Estate Losses (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Activity in the Valuation Allowance for Other Real Estate Losses [Abstract]
Balance, beginning of year	$ 19,556	$ 26,422	$ 25,310
(Reversal)/provision for losses	(2,122)	10,668	10,385
OREO disposal	(4,050)	(17,534)	(9,273)
Balance, end of year	$ 13,384	$ 19,556	$ 26,422