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]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2020	$ 203,611	$ 355	$ 255,296	$ (38,141)	$ (14,496)	$ (356)	$ 953
Beginning Balance, Shares at Dec. 31, 2020		35,505,000				(138,000)
Net income	1,298			1,181			117
Exercise of stock options	13		13
Exercise of stock options, Shares		2,000
Restricted stock units issued	(133)	$ (1)	(134)
Restricted stock units issued, Shares		40,000
Share based compensation earned	807		807
Share based compensation earned, Shares		21,000
Translation gain (loss)	55				55
Ending Balance at Mar. 31, 2021	205,651	$ 356	255,982	(36,960)	(14,441)	$ (356)	1,070
Ending Balance, Shares at Mar. 31, 2021		35,568,000				(138,000)
Beginning Balance at Dec. 31, 2020	203,611	$ 355	255,296	(38,141)	(14,496)	$ (356)	953
Beginning Balance, Shares at Dec. 31, 2020		35,505,000				(138,000)
Net income	1,680
Translation gain (loss)	345
Ending Balance at Jun. 30, 2021	206,833	$ 357	256,598	(36,667)	(14,151)	$ (356)	1,052
Ending Balance, Shares at Jun. 30, 2021		35,749,000				(138,000)
Beginning Balance at Mar. 31, 2021	205,651	$ 356	255,982	(36,960)	(14,441)	$ (356)	1,070
Beginning Balance, Shares at Mar. 31, 2021		35,568,000				(138,000)
Net income	382			293			89
Restricted stock units issued	(270)	$ (1)	(271)
Restricted stock units issued, Shares		181,000
Share based compensation earned	887		887
Translation gain (loss)	290				290
Noncontrolling interest distribution	(107)						107
Ending Balance at Jun. 30, 2021	206,833	$ 357	256,598	(36,667)	(14,151)	$ (356)	1,052
Ending Balance, Shares at Jun. 30, 2021		35,749,000				(138,000)
Beginning Balance at Dec. 31, 2021	205,957	$ 350	252,989	(36,715)	(12,070)	$ 0	1,403
Beginning Balance, Shares at Dec. 31, 2021		35,028,000				0
Net income	2,810			2,792			18
Restricted stock units issued	(67)		(67)
Restricted stock units issued, Shares		34,000
Share based compensation earned	953		953
Share based compensation earned, Shares		14,000
Translation gain (loss)	(531)				(531)
Noncontrolling interest distribution	(900)						(900)
Fair value of noncontrolling interest equity (see Note 14)	(5,000)						(5,000)
Ending Balance at Mar. 31, 2022	213,222	$ 350	253,875	(33,923)	(12,601)	$ 0	5,521
Ending Balance, Shares at Mar. 31, 2022		35,076,000				0
Beginning Balance at Dec. 31, 2021	205,957	$ 350	252,989	(36,715)	(12,070)	$ 0	1,403
Beginning Balance, Shares at Dec. 31, 2021		35,028,000				0
Net income	7,536
Translation gain (loss)	(3,497)
Common stock repurchase and retirement (see Note 8)	$ (4,300)
Common stock repurchase and retirement (see Note 8), Shares	725,000
Ending Balance at Jun. 30, 2022	$ 210,461	$ 345	250,262	(29,538)	(15,567)	$ 0	4,959
Ending Balance, Shares at Jun. 30, 2022		34,534,000				0
Beginning Balance at Mar. 31, 2022	213,222	$ 350	253,875	(33,923)	(12,601)	$ 0	5,521
Beginning Balance, Shares at Mar. 31, 2022		35,076,000				0
Net income	4,724			4,385			339
Restricted stock units issued	(209)	$ (2)	(211)
Restricted stock units issued, Shares		183,000
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)
Ending Balance at Jun. 30, 2022	$ 210,461	$ 345	$ 250,262	$ (29,538)	$ (15,567)	$ 0	$ 4,959
Ending Balance, Shares at Jun. 30, 2022		34,534,000				0