Condensed Consolidated Statement of Stockholders Equity Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings	Treasury Stock [Member]	AOCI Attributable to Parent [Member]
Beginning balance at Dec. 31, 2019	$ 209,914	$ 172	$ 102,319	$ 131,228	$ (4,070)	$ (19,735)
Net Income (Loss) Available to Common Stockholders, Basic				(1,294)
Net income (loss)	(1,294)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent	(7,155)					(7,155)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(7,155)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition			441
Stock Granted, Value, Share-based Compensation, Net of Forfeitures	441
Adjustments To Additional Paid In Capital Share Based Compensation Employer Contributions To Retirement Plan	815		(1,062)		1,877
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(229)		(1,048)		819
Ending balance at Mar. 31, 2020	202,492	172	100,650	129,934	(1,374)	(26,890)
Beginning balance at Dec. 31, 2020	223,346	173	103,225	138,296	(25)	(18,323)
Net Income (Loss) Available to Common Stockholders, Basic				1,724
Net income (loss)	1,724
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent	61					61
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	61
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition			929
Stock Granted, Value, Share-based Compensation, Net of Forfeitures	929
Adjustments To Additional Paid In Capital Share Based Compensation Employer Contributions To Retirement Plan	738	1	737		0
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(202)		(227)		25
Ending balance at Mar. 31, 2021	$ 226,596	$ 174	$ 104,664	$ 140,020	$ 0	$ (18,262)