Note 23 - Income Taxes - Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Loan and lease loss reserves	$ 3,526	$ 4,751
Deferred compensation	2,365	3,285
State franchise taxes	291	260
Branch acquisition costs	274	366
Unrealized losses other comprehensive income	134	553
Non accrued interest	105	341
Federal tax credits		525
Other	484	1,093
Total deferred tax assets	7,179	11,174
Deferred tax liabilities:
Deferred loan origination costs	(619)	(904)
Unrealized gains other comprehensive income		(92)
Basis difference in fixed assets		(164)
Other	(55)	(472)
Total deferred tax liabilities	(674)	(1,632)
Net deferred tax asset	$ 6,505	$ 9,542