Consolidated Condensed Statements of Changes in Stockholders' Equity (USD $) In Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Common Stock Warrant [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2012	$ 258,128	$ 0	$ 127	$ 878	$ 136,046	$ 4,274	$ 164,103	$ (47,300)
Net income	11,668	0	0	0	0	0	11,668	0
Other comprehensive income (loss)	(4,070)	0	0	0	0	(4,070)	0	0
Stock option expense	28	0	0	0	28	0	0	0
Shares issued under stock option plan	158	0	0	0	1	0	(97)	254
Restricted share activity under stock incentive plans	471	0	0	0	16	0	(45)	500
Shares issued direct purchases	64	0	0	0	20	0	0	44
Common stock dividends declared	(1,950)	0	0	0	0	0	(1,950)	0
Balance at Jun. 30, 2013	264,497	0	127	878	136,111	204	173,679	(46,502)
Balance at Dec. 31, 2013	272,147	0	127	878	136,403	545	182,290	(48,096)
Net income	10,868	0	0	0	0	0	10,868	0
Other comprehensive income (loss)	2,597	0	0	0	0	2,597	0	0
Stock option expense	34	0	0	0	34	0	0	0
Shares issued under stock option plan	433	0	0	0	18	0	(23)	438
Restricted share activity under stock incentive plans	(130)	0	0	0	(342)	0	0	212
Shares issued direct purchases	64	0	0	0	26	0	0	38
shares repurchased	(6,675)	0	0	0	0	0	0	(6,675)
Common stock dividends declared	(2,889)	0	0	0	0	0	(2,889)	0
Balance at Jun. 30, 2014	$ 276,449	$ 0	$ 127	$ 878	$ 136,139	$ 3,142	$ 190,246	$ (54,083)