Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock Outstanding [Member]	Common Stock [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2021	4,552
Balance at Dec. 31, 2021		$ 46,000	$ (2,087)	$ 32,529	$ (13,142)	$ 0	$ 17,346
Stock-based compensation		0	0	107	0	0	107
Net income		0	0	0	1,290	0	1,290
Retirement of treasury shares		0	2,087	(2,087)	0	0	0
Exercise of stock options (in shares)	4
Exercise of stock options		0	0	29	0	0	20
Balance (in shares) at Mar. 31, 2022	4,556
Balance at Mar. 31, 2022		46,000	0	30,578	(11,852)	0	18,772
Balance (in shares) at Dec. 31, 2022	4,507
Balance at Dec. 31, 2022		45	0	30,056	(8,713)	0	$ 21,388
Shares surrendered in legal settlement (in shares)	(61)						(61,200)
Shares surrendered in legal settlement		(1)	0	1	0	0	$ 0
Stock-based compensation		0	0	42	0	0	42
Comprehensive (loss) income		0	0	0	0	22	22
Net income		0	0	0	156	0	$ 156
Exercise of stock options (in shares)							(0)
Balance (in shares) at Mar. 31, 2023	4,446
Balance at Mar. 31, 2023		$ (44)	$ 0	$ 30,099	$ (8,557)	$ 22	$ 21,608