Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Subtotal [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2019	$ 8	$ 131,934	$ 65	$ (127,332)	$ 4,675	$ 3,014	$ 7,689
Balance, shares at Dec. 31, 2019	8,003,739
Net loss				(1,098)	(1,098)		(1,098)
Net unrealized losses on foreign currency translation, net of tax			(1)		(1)		(1)
Issuance of common stock, net of equity issuance costs	$ 1	6,770			6,771		6,771
Issuance of common stock, net of equity issuance costs, shares	937,500
Exercise of warrants		51			51		51
Exercise of warrants, shares	18,889
Exercise of options		2			2		2
Exercise of options, shares	556
Cashless exercise of options
Cashless exercise of options, shares	755
Stock-based compensation		196			196	26	222
Balance at Mar. 31, 2020	$ 9	138,953	64	(128,430)	10,596	3,040	13,636
Balance, shares at Mar. 31, 2020	8,961,439
Balance at Dec. 31, 2020	$ 10	144,296	74	(131,858)	12,522	3,051	15,573
Balance, shares at Dec. 31, 2020	9,873,006
Net loss				(537)	(537)		(537)
Net unrealized losses on foreign currency translation, net of tax			(6)		(6)		(6)
Exercise of options		62			62		62
Exercise of options, shares	14,754
Cashless exercise of options
Cashless exercise of options, shares	131
Stock-based compensation		443			443	2	445
Balance at Mar. 31, 2021	$ 10	$ 144,801	$ 68	$ (132,395)	$ 12,484	$ 3,053	$ 15,537
Balance, shares at Mar. 31, 2021	9,887,891