Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Dec. 31, 2020	9,664,000
Balances at Dec. 31, 2020	$ 10	$ 54,848	$ (46,026)	$ (384)	$ 8,448
Vesting of restricted stock (in shares)	7,000
Vesting of restricted stock	$ 0	0	0	0	0
Stock-based compensation	0	252	0	0	252
Net loss	0	0	(2,257)	0	(2,257)
Foreign currency translation adjustment	$ 0	0	0	99	$ 99
Exercise of warrants for cash (in shares)	229,000				228,939
Exercise of warrants for cash	$ 0	1,042	0	0	$ 1,042
Exercise of warrants, cashless (in shares)	189,000
Exercise of warrants, cashless	$ 0	0	0	0	0
Balances (in shares) at Mar. 31, 2021	10,089,000
Balances at Mar. 31, 2021	$ 10	56,142	(48,283)	(285)	7,584
Balances (in shares) at Dec. 31, 2021	13,443,000
Balances at Dec. 31, 2021	$ 13	66,227	(56,161)	133	10,212
Vesting of restricted stock (in shares)	6,000
Vesting of restricted stock	$ 0	0	0	0	0
Stock-based compensation	0	334	0	0	334
Net loss	0	0	(3,666)	0	(3,666)
Foreign currency translation adjustment	$ 0	0	0	(299)	(299)
Balances (in shares) at Mar. 31, 2022	13,449,000
Balances at Mar. 31, 2022	$ 13	$ 66,561	$ (59,827)	$ (166)	$ 6,581