Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2020	$ 372,944	$ 797	$ 281,466	$ 781,813	$ (679,493)	$ (11,639)
Beginning Balance, Shares at Dec. 31, 2020		79,652
Net Income (Loss)	896			896
Other comprehensive income (loss), net of tax	(1,956)					(1,956)
Dividend payments ($0.09 per share)	(4,361)			(4,361)
Dividends accrued on unvested RSUs	(68)			(68)
Deferred compensation adjustments, net of tax	(50)				(50)
PSUs, RSUs and restricted stock vested	(81)			(1,683)	1,602
Stock options exercised	1,244			(476)	1,720
Stock-based compensation expense	1,807		1,807
Ending Balance at Mar. 31, 2021	370,375	$ 797	283,273	776,121	(676,221)	(13,595)
Ending Balance, Shares at Mar. 31, 2021		79,652
Beginning Balance at Dec. 31, 2020	372,944	$ 797	281,466	781,813	(679,493)	(11,639)
Beginning Balance, Shares at Dec. 31, 2020		79,652
Net Income (Loss)	5,982
Other comprehensive income (loss), net of tax	(1,501)
Ending Balance at Jun. 30, 2021	375,515	$ 797	285,081	776,054	(673,277)	(13,140)
Ending Balance, Shares at Jun. 30, 2021		79,652
Beginning Balance at Mar. 31, 2021	370,375	$ 797	283,273	776,121	(676,221)	(13,595)
Beginning Balance, Shares at Mar. 31, 2021		79,652
Net Income (Loss)	5,086			5,086
Other comprehensive income (loss), net of tax	455					455
Dividend payments ($0.09 per share)	(4,374)			(4,374)
Dividends accrued on unvested RSUs	(128)			(128)
Deferred compensation adjustments, net of tax	(12)				(12)
PSUs, RSUs and restricted stock vested	(3)			(32)	29
Stock options exercised	2,308			(619)	2,927
Stock-based compensation expense	1,808		1,808
Ending Balance at Jun. 30, 2021	375,515	$ 797	285,081	776,054	(673,277)	(13,140)
Ending Balance, Shares at Jun. 30, 2021		79,652
Beginning Balance at Dec. 31, 2021	$ 357,102	$ 797	288,946	740,820	(661,547)	(11,914)
Beginning Balance, Shares at Dec. 31, 2021	79,652	79,652
Net Income (Loss)	$ (1,127)			(1,127)
Other comprehensive income (loss), net of tax	(1,642)					(1,642)
Dividend payments ($0.09 per share)	(4,438)			(4,438)
Dividends accrued on unvested RSUs	32			32
Deferred compensation adjustments, net of tax	(18)				(18)
PSUs, RSUs and restricted stock vested	(54)			(895)	841
Stock options exercised	568			(143)	711
Stock-based compensation expense	1,893		1,893
Ending Balance at Mar. 31, 2022	352,316	$ 797	290,839	734,249	(660,013)	(13,556)
Ending Balance, Shares at Mar. 31, 2022		79,652
Beginning Balance at Dec. 31, 2021	$ 357,102	$ 797	288,946	740,820	(661,547)	(11,914)
Beginning Balance, Shares at Dec. 31, 2021	79,652	79,652
Net Income (Loss)	$ 1,016
Other comprehensive income (loss), net of tax	(4,782)
Ending Balance at Jun. 30, 2022	$ 348,537	$ 797	292,727	731,821	(660,112)	(16,696)
Ending Balance, Shares at Jun. 30, 2022	79,652	79,652
Beginning Balance at Mar. 31, 2022	$ 352,316	$ 797	290,839	734,249	(660,013)	(13,556)
Beginning Balance, Shares at Mar. 31, 2022		79,652
Net Income (Loss)	2,143			2,143
Other comprehensive income (loss), net of tax	(3,140)					(3,140)
Dividend payments ($0.09 per share)	(4,439)			(4,439)
Dividends accrued on unvested RSUs	(23)			(23)
Deferred compensation adjustments, net of tax	24				24
PSUs, RSUs and restricted stock vested	(300)			(90)	(210)
Stock options exercised	68			(19)	87
Stock-based compensation expense	1,888		1,888
Ending Balance at Jun. 30, 2022	$ 348,537	$ 797	$ 292,727	$ 731,821	$ (660,112)	$ (16,696)
Ending Balance, Shares at Jun. 30, 2022	79,652	79,652