Note 7 - Other Real Estate Owned (Details) - Activity in OREO - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Activity in OREO [Abstract]
Balance	$ 4,255	$ 1,346	$ 6,326	$ 2,985
Acquisitions	816	5,143	1,588	5,749
Write-down of carrying value	0	0	(896)	(5)
Sales	(216)	(697)	(2,163)	(2,937)
Balance	$ 4,855	$ 5,792	$ 4,855	$ 5,792