CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Retained Earnings [Member]	Treasury Shares [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2010	$ 70,707	$ 26,515	$ 54,045	$ (11,698)	$ 1,845
Balance (in shares) at Dec. 31, 2010		6,689,743
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,294		4,294
Net unrealized gain (loss) on available-for-sale securities, net of taxes	1,351				1,351
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income, net of taxes	(276)				(276)
Change in nonqualified pension plan unrecognized net gain (loss) and unrecognized prior service cost, net of taxes	4				4
Nonqualified pension plan curtailment (net of taxes of $80)	155				155
Exercise of stock options (in shares)	0
Compensation expense relating to stock options	22	22
Common stock dividends, $0.32 per share	(2,141)		(2,141)
Balance at Jun. 30, 2011	74,116	26,537	56,198	(11,698)	3,079
Balance (in shares) at Jun. 30, 2011		6,689,743
Balance at Dec. 31, 2011	77,960	26,753	57,877	(11,698)	5,028
Balance (in shares) at Dec. 31, 2011		6,704,723
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,264		4,264
Net unrealized gain (loss) on available-for-sale securities, net of taxes	449				449
Reclassification adjustment for net realized gain on sale of available-for-sale securities included in net income, net of taxes	(304)				(304)
Change in nonqualified pension plan unrecognized net gain (loss) and unrecognized prior service cost, net of taxes	16				16
Nonqualified pension plan curtailment (net of taxes of $80)	0
Dividend Reinvestment and Stock Purchase Plan	179	179
Dividend Reinvestment and Stock Purchase Plan (in shares)		13,775
Exercise of stock options	28		(5)	33
Exercise of stock options (in shares)	2,144	2,144
Compensation expense relating to stock options	20	20
Common stock dividends, $0.32 per share	(2,147)		(2,147)
Balance at Jun. 30, 2012	$ 80,465	$ 26,952	$ 59,989	$ (11,665)	$ 5,189
Balance (in shares) at Jun. 30, 2012		6,720,642