Note 7 - Segment Information (Details) - Segment Reporting (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Net interest income	$ 7,930	$ 7,867	$ 24,192	$ 24,832
Provision expense	833	1,183	675	3,023
Noninterest income	1,574	1,674	7,479	7,127
Noninterest expense	7,320	6,957	22,585	21,451
Tax expense	290	294	2,185	2,037
Net income	1,061	1,107	6,226	5,448
Assets	747,506	795,954	747,506	795,954	769,223
Banking [Member]
Segment Reporting Information [Line Items]
Net interest income	7,294	7,239	21,641	22,322
Provision expense	819	1,170	554	2,957
Noninterest income	1,497	1,603	6,782	6,491
Noninterest expense	6,743	6,417	20,745	19,732
Tax expense	249	245	1,750	1,577
Net income	980	1,010	5,374	4,547
Assets	733,578	782,183	733,578	782,183
Consumer Finance [Member]
Segment Reporting Information [Line Items]
Net interest income	636	628	2,551	2,510
Provision expense	14	13	121	66
Noninterest income	77	71	697	636
Noninterest expense	577	540	1,840	1,719
Tax expense	41	49	435	460
Net income	81	97	852	901
Assets	$ 13,928	$ 13,771	$ 13,928	$ 13,771