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, 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
Net income				13,446		13,446
Other comprehensive income (loss)					(10,081)	(10,081)
Cash dividends declared-preferred				(1,500)		(1,500)
Preferred stock discount accretion	451			(451)
Repurchase of common stock warrant						0
Shares issued pursuant to employee stock purchase plan		1	132			133
Shares issued pursuant to employee stock purchase plan (in Shares)		9,000				8,893
Expense related to employee stock purchase plan			36			36
Balance at Dec. 31, 2013	29,988	935	51,102	91,242	(3,212)	170,055
Balance (in Shares) at Dec. 31, 2013		7,479,000
Net income				16,459		16,459
Other comprehensive income (loss)					8,087	8,087
Cash dividends declared-preferred				(1,915)		(1,915)
Preferred stock discount accretion	12			(12)
Redemption of preferred stock	(20,000)					(20,000)
Shares issued under director compensation plan			82			82
Shares issued under director compensation plan (in Shares)		3,000
Repurchase of common stock warrant						0
Shares issued pursuant to employee stock purchase plan		1	128			129
Shares issued pursuant to employee stock purchase plan (in Shares)		7,000				6,894
Expense related to employee stock purchase plan			32			32
Balance at Dec. 31, 2014	$ 10,000	$ 936	$ 51,344	$ 105,774	$ 4,875	$ 172,929
Balance (in Shares) at Dec. 31, 2014		7,489,000