Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $) In Thousands	Preferred Stock [Member]	Common Stock [Member]	Warrant [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance at Dec. 31, 2012	$ 56,600	$ 226	$ 946	$ 180,593	$ 106,146	$ 5,465	$ 349,976
Net Income					11,572		11,572
Net change in other comprehensive income						(957)	(957)
Stock-based compensation				685			685
Shares issued under equity compensation plans		2		467			469
Tax benefits related to non-qualified stock compensation				134			134
Common stock issued				114			114
Preferred stock dividends					(141)		(141)
Ending Balance at Mar. 31, 2013	56,600	228	946	181,993	117,577	4,508	361,852
Beginning Balance at Dec. 31, 2013	56,600	253	946	242,990	96,393	(3,319)	393,863
Net Income					12,499		12,499
Net change in other comprehensive income						2,817	2,817
Stock-based compensation				892			892
Shares issued under equity compensation plans		2		248			250
Tax benefits related to non-qualified stock compensation				75			75
Common stock issued				127			127
Preferred stock dividends					(141)		(141)
Ending Balance at Mar. 31, 2014	$ 56,600	$ 255	$ 946	$ 244,332	$ 108,751	$ (502)	$ 410,382