Note 7 - Segment Information (Details) - Segment Reporting - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net interest income	$ 9,100	$ 8,930
Provision expense	479	(78)
Noninterest income	3,235	3,489
Noninterest expense	7,969	7,427
Provision for income taxes	1,055	1,446
Net income	2,832	3,624
Assets	883,517	867,985	$ 796,285
Banking [Member]
Segment Reporting Information [Line Items]
Net interest income	7,671	7,561
Provision expense	375	(175)
Noninterest income	2,832	3,043
Noninterest expense	7,194	6,707
Provision for income taxes	731	1,107
Net income	2,202	2,965
Assets	871,819	855,500
Consumer Finance [Member]
Segment Reporting Information [Line Items]
Net interest income	1,429	1,369
Provision expense	104	97
Noninterest income	403	446
Noninterest expense	775	720
Provision for income taxes	324	339
Net income	630	659
Assets	$ 11,698	$ 12,485