Note 18 - Parent Company Financial Information (Details) - Condensed Statement of Income (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Condensed Income Statements, Captions [Line Items]
Income before applicable income taxes and equity in undistributed income of subsidiary	$ 2,481	$ 2,732	$ 2,384	$ 3,141	$ 2,675	$ 2,614	$ 3,274	$ 3,221	$ 10,738	$ 11,784
Provision for income taxes	519	604	490	733	550	540	769	750	2,346	2,609
Net income	1,962	2,128	1,894	2,408	2,125	2,074	2,505	2,471	8,392	9,175
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Dividends from subsidiary									3,512	2,507
Interest, dividend and other income									99	113
Securities gains									629	451
Total income									4,240	3,071
Expenses									285	308
Income before applicable income taxes and equity in undistributed income of subsidiary									3,955	2,763
Provision for income taxes									151	86
Income before equity in undistributed income of subsidiary									3,804	2,677
Equity in undistributed income of subsidiary									4,588	6,498
Net income									$ 8,392	$ 9,175