Consolidated Statements of Changes in Shareholders’ Equity (USD $) In Thousands, except Share data	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2009	$ 28,348	$ 922	$ 50,476	$ 63,617	$ 3,864	$ 147,227
Balance (in Shares) at Dec. 31, 2009		7,379,000
Net income				6,932		6,932
Other comprehensive income (loss)					(2,966)	(2,966)
Cash dividends declared-preferred				(1,500)		(1,500)
Preferred stock discount accretion	371			(371)
Shares issued pursuant to employee stock purchase plan		4	153			157
Shares issued pursuant to employee stock purchase plan (in Shares)		33,000				33,071
Expense related to employee stock purchase plan			46			46
Balance at Dec. 31, 2010	28,719	926	50,675	68,678	898	149,896
Balance (in Shares) at Dec. 31, 2010		7,412,000
Net income				2,738		2,738
Other comprehensive income (loss)					5,745	5,745
Cash dividends declared-preferred				(1,500)		(1,500)
Preferred stock discount accretion	396			(396)
Shares issued pursuant to employee stock purchase plan		5	131			136
Shares issued pursuant to employee stock purchase plan (in Shares)		34,000				34,769
Expense related to employee stock purchase plan			42			42
Balance at Dec. 31, 2011	29,115	931	50,848	69,520	6,643	157,057
Balance (in Shares) at Dec. 31, 2011		7,446,000
Net income				12,149		12,149
Other comprehensive income (loss)					226	226
Cash dividends declared-preferred				(1,500)		(1,500)
Preferred stock discount accretion	422			(422)
Repurchase of common stock warrant			(75)			(75)
Shares issued pursuant to employee stock purchase plan		3	125			128
Shares issued pursuant to employee stock purchase plan (in Shares)		24,000				23,368
Expense related to employee stock purchase plan			36			36
Balance at Dec. 31, 2012	$ 29,537	$ 934	$ 50,934	$ 79,747	$ 6,869	$ 168,021
Balance (in Shares) at Dec. 31, 2012		7,470,000