Note 7 - Segment Information - Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Net interest income	$ 11,387	$ 11,510
Provision expense	2,377	756
Noninterest income	1,846	3,076
Noninterest expense	9,568	9,808
Tax expense	95	656
Net income	1,193	3,366
Assets	1,044,873	1,096,421	$ 1,030,493
Banking [Member]
Net interest income	10,037	10,089
Provision expense	2,250	600
Noninterest income	1,819	2,672
Noninterest expense	8,820	9,068
Tax expense	(10)	461
Net income	796	2,632
Assets	1,033,203	1,085,123
Consumer Finance [Member]
Net interest income	1,350	1,421
Provision expense	127	156
Noninterest income	27	404
Noninterest expense	748	740
Tax expense	105	195
Net income	397	734
Assets	$ 11,670	$ 11,298