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			(1,143)			(1,143)
Net common stock issued under employee plans and related tax expense	$ 89	150				239
Net common stock issued under employee plans and related tax expense, shares	89,473
Other comprehensive income, net of tax				1,068		1,068
Treasury shares purchased					(4,040)	(4,040)
Treasury shares purchased, shares	(249,492)
Net income			4,535			4,535
Ending balance, Shares at Mar. 31, 2015	19,033,040
Ending balance at Mar. 31, 2015	$ 19,900	101,395	163,818	673	(14,342)	271,444
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			(1,582)			(1,582)
Net common stock issued under employee plans and related tax expense	$ 87	104				191
Net common stock issued under employee plans and related tax expense, shares	87,006
Other comprehensive income, net of tax				1,836		1,836
Treasury shares purchased					(12,750)	(12,750)
Treasury shares purchased, shares	(808,763)
Net income			1,869			1,869
Ending balance, Shares at Mar. 31, 2016	19,285,045
Ending balance at Mar. 31, 2016	$ 21,225	$ 122,070	$ 173,496	$ 546	$ (31,676)	$ 285,661