Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Preferred Stock [Member]	Common Stock [Member]	Capital Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2008	$ 0	$ 6,086	$ 26,491	$ 71,090	$ (1,367)	$ 102,300
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	6,810	0	6,810
Change in unrealized gains/(losses) on securities available for sale, net of tax	0	0	0	0	676
Less: Reclassification adjustment for gains/(losses) on securities available for sale, net of tax	0	0	0	0	(2)
Change in unfunded pension liability, net of tax	0	0	0	0	1,802
Other comprehensive income (loss)					2,476	2,476
Total comprehensive income						9,286
Stock repurchased and retired	0	(8)	(33)	(80)	0	(121)
Stock options exercised	0	32	442	0	0	474
Stock based compensation expense	0	0	62	0	0	62
Dividends on preferred stock						0
Cash dividends declared	0	0	0	(5,612)	0	(5,612)
Balance at Dec. 31, 2009	0	6,110	26,962	72,208	1,109	106,389
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	8,278	0	8,278
Change in unrealized gains/(losses) on securities available for sale, net of tax	0	0	0	0	(1,341)
Add: Reclassification adjustment for losses on securities other-than temporarily impaired, net of tax	0	0	0	0	20
Less: Reclassification adjustment for gains/(losses) on securities available for sale, net of tax	0	0	0	0	(102)
Change in unfunded pension liability, net of tax	0	0	0	0	155
Other comprehensive income (loss)					(1,268)	(1,268)
Total comprehensive income						7,010
Stock options exercised	0	3	45	0	0	48
Stock based compensation expense	0	0	63	0	0	63
Equity based compensation	0	15	198	0	0	213
Dividends on preferred stock						0
Cash dividends declared	0	0	0	(5,636)	0	(5,636)
Balance at Dec. 31, 2010	0	6,128	27,268	74,850	(159)	108,087
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	11,571		11,571
Change in unrealized gains/(losses) on securities available for sale, net of tax	0	0	0	0	7,554
Less: Reclassification adjustment for gains/(losses) on securities available for sale, net of tax	0	0	0	0	1
Change in unfunded pension liability, net of tax					(566)
Other comprehensive income (loss)					6,989	6,989
Total comprehensive income						18,560
Issuance of common stock	0	1,626	28,279	0	0	29,905
Issuance of preferred stock	5,000	0	0	0	0	5,000
Issuance of replacement options	0	0	132	0	0	132
Retirement of preferred stock	(5,000)	0	0	1,900	0	(3,100)
Stock options exercised	0	11	162	0	0	173
Stock based compensation expense	0	0	63	0	0	63
Equity based compensation	0	42	491	0	0	533
Dividends on preferred stock	0	0	0	(103)	0	(103)
Cash dividends declared	0	0	0	(6,421)		(6,421)
Balance at Dec. 31, 2011	$ 0	$ 7,807	$ 56,395	$ 81,797	$ 6,830	$ 152,829