CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Retained Earnings [Member]	Treasury Shares [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2011	$ 26,753	$ 57,877	$ (11,698)	$ 5,028	$ 77,960
Balance (in shares) at Dec. 31, 2011	6,704,723
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,277			2,277
Net unrealized gain (loss) on available-for-sale securities, net of taxes				(505)	(505)
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income, net of taxes				(251)	(251)
Change in nonqualified pension plan unrecognized net gain and unrecognized prior service cost, net of taxes				7	7
Dividend Reinvestment and Stock Purchase Plan	89				89
Dividend Reinvestment and Stock Purchase Plan (in shares)	6,968
Compensation expense relating to stock options	9				9
Common stock dividends		(1,073)			(1,073)
Balance at Mar. 31, 2012	26,851	59,081	(11,698)	4,279	78,513
Balance (in shares) at Mar. 31, 2012	6,711,691
Balance at Dec. 31, 2012	27,107	61,843	(11,665)	4,721	82,006
Balance (in shares) at Dec. 31, 2012	6,731,900
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		1,728			1,728
Net unrealized gain (loss) on available-for-sale securities, net of taxes				(342)	(342)
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income, net of taxes				(387)	(387)
Change in nonqualified pension plan unrecognized net gain and unrecognized prior service cost, net of taxes				8	8
Dividend Reinvestment and Stock Purchase Plan	80				80
Dividend Reinvestment and Stock Purchase Plan (in shares)	5,049
Acquisition of First Capital Bancshares, Inc.	12,321				12,321
Acquisition of First Capital Bancshares, Inc. (in shares)	888,811
Compensation expense relating to stock options	9				9
Common stock dividends		(1,219)			(1,219)
Balance at Mar. 31, 2013	$ 39,517	$ 62,352	$ (11,665)	$ 4,000	$ 94,204
Balance (in shares) at Mar. 31, 2013	7,625,760