Note 6 - Other Real Estate Owned (Details) - Activity in the Valuation Allowance for Other Real Estate Losses - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Activity in the Valuation Allowance for Other Real Estate Losses [Abstract]
Balance, beginning of year	$ 2,110	$ 13,384	$ 19,556
Provision/(Reversal) for losses	547	1,619	(2,122)
OREO disposal	(350)	(12,893)	(4,050)
Balance, end of year	$ 2,307	$ 2,110	$ 13,384