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, 2021	205,957	$ 350	252,989	(36,715)	(12,070)	1,403
Beginning Balance, Shares at Dec. 31, 2021		35,028
Net income	7,536
Translation gain (loss)	$ (3,497)
Common stock repurchase and retirement (see Note 8), Shares	4,300,000
Ending Balance at Jun. 30, 2022	$ 210,461	$ 345	250,262	(29,538)	(15,567)	4,959
Ending Balance, Shares at Jun. 30, 2022		34,534
Beginning Balance at Mar. 31, 2022	213,222	$ 350	253,875	(33,923)	(12,601)	5,521
Beginning Balance, Shares at Mar. 31, 2022		35,076
Net income	4,724			4,385		339
Restricted stock units issued	(209)	$ (2)	211
Restricted stock units issued, Shares		183
Share based compensation earned	915		915
Translation gain (loss)	(2,966)				(2,966)
Fair value of noncontrolling interest equity (see Note 14)	(901)					(901)
Common stock repurchase and retirement (see Note 8)	$ (4,324)	$ (7)	(4,317)
Common stock repurchase and retirement (see Note 8), Shares	725,000	(725)
Ending Balance at Jun. 30, 2022	$ 210,461	$ 345	250,262	(29,538)	(15,567)	4,959
Ending Balance, Shares at Jun. 30, 2022		34,534
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
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
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	6,460
Translation gain (loss)	$ 905
Common stock repurchase and retirement (see Note 8), Shares	0
Ending Balance at Jun. 30, 2023	$ 227,148	$ 347	252,406	(13,596)	(17,091)	5,082
Ending Balance, Shares at Jun. 30, 2023		34,738
Beginning Balance at Mar. 31, 2023	222,182	$ 346	250,971	(17,320)	(17,230)	5,415
Beginning Balance, Shares at Mar. 31, 2023		34,557
Net income	3,990			3,724		266
Exercise of stock options	317		317
Exercise of stock options, Shares		25
Restricted stock units issued	(270)	$ 1	(271)
Restricted stock units issued, Shares		132
Share based compensation earned	1,389		1,389
Share based compensation earned, Shares		24
Translation gain (loss)	139				139
Noncontrolling interest distribution	$ (599)					(599)
Common stock repurchase and retirement (see Note 8), Shares	0
Ending Balance at Jun. 30, 2023	$ 227,148	$ 347	$ 252,406	$ (13,596)	$ (17,091)	$ 5,082
Ending Balance, Shares at Jun. 30, 2023		34,738