Note 8 - Other Real Estate Owned - OREO Activity (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Beginning balance	$ 10,673	$ 21,843
Transfers from loans and other increases	593	1,790
Proceeds from sales	(4,670)	(6,996)
Gain on sales, net	95	30
Write downs and other decreases, net	(585)	(1,331)
Ending balance	$ 6,106	$ 15,336