Note 5 - Other Real Estate Owned - OREO Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Beginning balance	$ 21,843	$ 31,960
Transfers from loans and other increases	2,044	1,514
Proceeds from sales	(11,289)	(10,342)
Loss on sales, net	(473)	(188)
Write downs and other decreases, net	(1,452)	(1,101)
Ending balance	$ 10,673	$ 21,843