CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2012	$ 11,250	$ 110,056	$ 4,801	$ 46,753	$ (17,232)	$ 5,063	$ 160,691
Net income				9,847			9,847
Other comprehensive income (loss), net of tax						(7,287)	(7,287)
Dividend on series B preferred stock				(113)			(113)
Issuance cost of common stock				(6)			(6)
Cash dividends declared on common stock				(2,125)			(2,125)
Issuance of restricted stock awards (18,829 shares)			91		152		243
Stock issued for options exercised			8		2		10
Stock-based compensation expense			25				25
Balance at Jun. 30, 2013	11,250	110,056	4,925	54,356	(17,078)	(2,224)	161,285
Balance at Dec. 31, 2013	11,250	110,056	4,986	61,914	(17,078)	(2,544)	168,584
Net income				8,776			8,776
Other comprehensive income (loss), net of tax						3,745	3,745
Dividend on series B preferred stock				(56)			(56)
Issuance cost of common stock				(7)			(7)
Cash dividends declared on common stock				(3,519)			(3,519)
Stock issued for options exercised			119		361		480
Tax benefit of options exercised			241				241
Stock-based compensation expense			34				34
Balance at Jun. 30, 2014	$ 11,250	$ 110,056	$ 5,380	$ 67,108	$ (16,717)	$ 1,201	$ 178,278