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, 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	$ 10,172
Common stock repurchase and retirement, Shares	0
Translation gain (loss)	$ (255)
Ending Balance at Sep. 30, 2023	230,142	$ 347	253,613	(10,266)	(18,251)	4,699
Ending Balance, Shares at Sep. 30, 2023		34,811
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)
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
Net income	3,712			3,330		382
Exercise of stock options	281		281
Exercise of stock options, Shares		25
Restricted stock units issued	(203)		(203)
Restricted stock units issued, Shares		48
Share based compensation earned	$ 1,129		1,129
Common stock repurchase and retirement, Shares	0
Translation gain (loss)	$ (1,160)				(1,160)
Noncontrolling interest distribution	(765)					(765)
Ending Balance at Sep. 30, 2023	230,142	$ 347	253,613	(10,266)	(18,251)	4,699
Ending Balance, Shares at Sep. 30, 2023		34,811
Beginning Balance at Dec. 31, 2023	237,491	$ 348	254,956	(6,387)	(16,274)	4,848
Beginning Balance, Shares at Dec. 31, 2023		34,835
Net income	2,093			1,508		585
Exercise of stock options	113		113
Exercise of stock options, Shares		10
Restricted stock units issued	(2,202)	$ 2	(2,204)
Restricted stock units issued, Shares		195
Share based compensation earned	1,808		1,808
Share based compensation earned, Shares		12
Common stock repurchase and retirement	(3,001)	$ (1)	(3,000)
Common stock repurchase and retirement, Shares		(144)
Translation gain (loss)	654				654
Noncontrolling interest distribution	(804)					(804)
Ending Balance at Mar. 31, 2024	236,152	$ 349	251,673	(4,879)	(15,620)	4,629
Ending Balance, Shares at Mar. 31, 2024		34,908
Beginning Balance at Dec. 31, 2023	237,491	$ 348	254,956	(6,387)	(16,274)	4,848
Beginning Balance, Shares at Dec. 31, 2023		34,835
Net income	9,561
Common stock repurchase and retirement	$ (5,000)
Common stock repurchase and retirement, Shares	230,000
Translation gain (loss)	$ 1,900
Ending Balance at Sep. 30, 2024	245,881	$ 349	253,590	1,692	(14,374)	4,624
Ending Balance, Shares at Sep. 30, 2024		34,979
Beginning Balance at Mar. 31, 2024	236,152	$ 349	251,673	(4,879)	(15,620)	4,629
Beginning Balance, Shares at Mar. 31, 2024		34,908
Net income	4,930			4,485		445
Exercise of stock options	161		161
Exercise of stock options, Shares		10
Restricted stock units issued	(465)	$ 1	(466)
Restricted stock units issued, Shares		92
Share based compensation earned	2,191		2,191
Common stock repurchase and retirement	(2,000)	$ (1)	(1,999)
Common stock repurchase and retirement, Shares		(86)
Translation gain (loss)	(856)				(856)
Noncontrolling interest distribution	(301)					(301)
Ending Balance at Jun. 30, 2024	239,812	$ 349	251,560	(394)	(16,476)	4,773
Ending Balance, Shares at Jun. 30, 2024		34,924
Net income	2,539			2,086		453
Exercise of stock options	94		94
Exercise of stock options, Shares		8
Restricted stock units issued	(340)		(340)
Restricted stock units issued, Shares		27
Share based compensation earned	2,276		2,276
Share based compensation earned, Shares		20
Common stock repurchase and retirement	$ 0
Common stock repurchase and retirement, Shares	0
Translation gain (loss)	$ 2,102				2,102
Noncontrolling interest distribution	(602)					(602)
Ending Balance at Sep. 30, 2024	$ 245,881	$ 349	$ 253,590	$ 1,692	$ (14,374)	$ 4,624
Ending Balance, Shares at Sep. 30, 2024		34,979