Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Loss [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2021	$ 205,957	$ 350	$ 252,989	$ (36,715)	$ (12,070)	$ 1,403
Beginning Balance, Shares at Dec. 31, 2021		35,028
Net income	2,810			2,792		18
Restricted stock units issued	(67)		(67)
Restricted stock units issued, Shares		34
Share based compensation earned	953		953
Share based compensation earned, Shares		14
Translation gain (loss)	(531)				(531)
Noncontrolling interest distribution	(900)					(900)
Fair value of noncontrolling interest equity issued (see Note 14)	5,000					5,000
Ending Balance at Mar. 31, 2022	213,222	$ 350	253,875	(33,923)	(12,601)	5,521
Ending Balance, Shares at Mar. 31, 2022		35,076
Beginning Balance at Dec. 31, 2022	218,148	$ 344	250,174	(19,298)	(17,996)	4,924
Beginning Balance, Shares at Dec. 31, 2022		34,382
Net income	2,469			1,978		491
Exercise of stock options	612	$ 1	611
Exercise of stock options, Shares		52
Restricted stock units issued	(621)	$ 1	(622)
Restricted stock units issued, Shares		123
Share based compensation earned	808		808
Translation gain (loss)	$ 766				766
Common stock repurchase and retirement (see Note 8), Shares	0
Ending Balance at Mar. 31, 2023	$ 222,182	$ 346	$ 250,971	$ (17,320)	$ (17,230)	$ 5,415
Ending Balance, Shares at Mar. 31, 2023		34,557