Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2019	21,102	2
Balance at Dec. 31, 2019	$ 211	$ (2)	$ 16,511	$ (3,616)	$ 5,851	$ 12,406	$ 31,361
Share-based compensation			136				136
Exercise of stock options (in shares)	20
Exercise of stock options			(2)				(2)
Other comprehensive income (loss)				(297)		(1,538)	(1,835)
Net income					3,367	5,595	8,962
Director liability settlement							0
Balance (in shares) at Dec. 31, 2020	21,122	2
Balance at Dec. 31, 2020	$ 211	$ (2)	16,645	(3,913)	9,218	16,463	38,622
Share-based compensation			711				711
Exercise of stock options (in shares)	198
Exercise of stock options	$ 2		(125)				(123)
Other comprehensive income (loss)				(1,115)		(2,609)	(3,724)
Net income					(1,779)	3,779	2,000
Other changes to non-controlling interest						4	4
Director liability settlement (in shares)		52
Director liability settlement		$ (102)					(102)
Distribution to non-controlling investors						(40)	(40)
Balance (in shares) at Dec. 31, 2021	21,320	54
Balance at Dec. 31, 2021	$ 213	$ (104)	$ 17,231	$ (5,028)	$ 7,439	$ 17,597	$ 37,348