Consolidated Statement Of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Gain/(Loss) [Member]	Treasury Stock [Member]	Total
Beginning balance, Shares at Dec. 31, 2014	19,193,059
Beginning balance at Dec. 31, 2014	$ 19,811	$ 101,245	$ 160,427	$ (395)	$ (10,302)	$ 270,786
Dividends declared:
Preferred			(1)			(1)
Common			(2,285)			(2,285)
Common stock issued	$ 89	256				345
Common stock issued, shares	88,937
Net common stock issued under employee plans and related tax expense	$ 1	17				18
Net common stock issued under employee plans and related tax expense, shares	1,041
Other comprehensive income, net of tax				162		162
Treasury shares purchased					(4,040)	(4,040)
Treasury shares purchased, shares	(249,492)
Net income			8,696			8,696
Ending balance, Shares at Jun. 30, 2015	19,033,545
Ending balance at Jun. 30, 2015	$ 19,901	101,518	166,837	(233)	(14,342)	273,681
Beginning balance, Shares at Dec. 31, 2015	20,006,802
Beginning balance at Dec. 31, 2015	$ 21,138	121,966	173,210	(1,290)	(18,926)	296,098
Dividends declared:
Preferred			(1)			(1)
Common			(3,117)			(3,117)
Net common stock issued under employee plans and related tax expense	$ 86	327				413
Net common stock issued under employee plans and related tax expense, shares	85,585
Other comprehensive income, net of tax				2,793		2,793
Treasury shares purchased					(21,107)	(21,107)
Treasury shares purchased, shares	(1,341,604)
Net income			7,281			7,281
Ending balance, Shares at Jun. 30, 2016	18,750,783
Ending balance at Jun. 30, 2016	$ 21,224	$ 122,293	$ 177,373	$ 1,503	$ (40,033)	$ 282,360