Condensed Consolidated Statements of Changes in Stockholders' Equity Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Deferred Compensation, Share-based Payments [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock, Common [Member]
Stockholders' Equity Attributable to Parent	$ 307,964	$ 54,925	$ 163,603	$ 104,683	$ 3,540	$ (2,304)	$ (16,483)
Net income	8,390	0	0	8,390	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(6,215)	0	0	0	0	(6,215)	0
Stock Issued During Period, Value, Deferred Compensation Plan	150	15	135	0	0	0	0
Stock Issued During Period, Value, Restricted Stock Award, Gross	516	53	463	0	0	0	0
Deferred Compensation Arrangement with Individual, Compensation Expense	0	0	0	0	(316)	0	(316)
Adjustments to Additional Paid in Capital, Income Tax Benefit from Deferred Compensation	217	0	217	0	0	0	0
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options	(515)	0	594	0	(1,109)	0	0
Adjustments to Deferred Compensation Equity, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	80	0	0	0	80	0	0
Stockholders' Equity Attributable to Parent	310,587	54,993	165,012	113,073	2,195	(8,519)	(16,167)
Stockholders' Equity Attributable to Parent	475,864	70,876	293,937	131,392	2,761	(6,473)	(16,629)
Net income	13,316	0	0	13,316	0	0	0
Other Comprehensive Income (Loss), Net of Tax	7,628	0	0	0	0	7,628	0
Stock Issued During Period, Value, Deferred Compensation Plan	194	23	171	0	0	0	0
Stock Issued During Period, Value, Restricted Stock Award, Gross	864	104	760	0	0	0	0
Stock Issued During Period, Value, Employee Stock Purchase Plan	24	3	21	0	0	0	0
Deferred Compensation Arrangement with Individual, Compensation Expense	0	0	0	0	(1)	0	(1)
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options	(866)	0	(52)	0	(814)	0	0
Adjustments to Deferred Compensation Equity, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	128	0	0	0	128	0	0
Stockholders' Equity Attributable to Parent	$ 497,152	$ 71,006	$ 294,837	$ 144,708	$ 2,074	$ 1,155	$ (16,628)