CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Preferred Stock [Member]	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balances at Dec. 31, 2011	$ 21,949	$ 71,571	$ 45,474	$ 5,013	$ 144,007
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	10,323	0	10,323
Other comprehensive income (loss)	0	0	0	1,563	1,563
Cash dividends paid	0	0	(1,749)	0	(1,749)
Redemption of preferred stock	(10,142)	905	0	0	(9,237)
Dividends declared on preferred stock	0	0	(984)	0	(984)
Preferred stock accretion	89	0	(89)	0	0
Stock options exercised	0	192	0	0	192
Stock based compensation expense	0	181	0	0	181
Balances at Dec. 31, 2012	11,896	72,849	52,975	6,576	144,296
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	13,229	0	13,229
Other comprehensive income (loss)	0	0	0	(7,201)	(7,201)
Cash dividends paid	0	0	(3,524)	0	(3,524)
Dividends declared on preferred stock	0	0	(600)	0	(600)
Preferred stock accretion	59	0	(59)	0	0
Stock options exercised	0	571	0	0	571
Stock based compensation expense	0	169	0	0	169
Balances at Dec. 31, 2013	11,955	73,589	62,021	(625)	146,940
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	13,150	0	13,150
Other comprehensive income (loss)	0	0	0	2,120	2,120
Cash dividends paid	0	0	(4,854)	0	(4,854)
Redemption of preferred stock	(12,000)	0	0	0	(12,000)
Dividends declared on preferred stock	0	0	(553)	0	(553)
Preferred stock accretion	45	0	(45)	0	0
Stock options exercised	0	731	0	0	731
Stock based compensation expense	0	248	0	0	248
Balances at Dec. 31, 2014	$ 0	$ 74,568	$ 69,719	$ 1,495	$ 145,782