Consolidated Statement Of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income Gain/(Loss) [Member]	Treasury Stock [Member]	Total
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
Beginning balance, Shares at Dec. 31, 2016	18,674,727
Beginning balance at Dec. 31, 2016	$ 21,231	123,112	184,840	(907)	(41,647)	286,629
Dividends declared:
Preferred			(1)			(1)
Common			(1,480)			(1,480)
Net common stock issued under employee plans and related tax expense	$ 30	305				335
Net common stock issued under employee plans and related tax expense, shares	30,220
Other comprehensive income, net of tax				605		605
Treasury shares purchased					(453)	(453)
Treasury shares purchased, shares	(15,925)
Net income			5,279			5,279
Ending balance, Shares at Mar. 31, 2017	18,689,022
Ending balance at Mar. 31, 2017	$ 21,261	$ 123,417	$ 188,638	$ (302)	$ (42,100)	$ 290,914