Condensed Consolidated Statements of Changes in Stockholder's Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Total
Balance at beginning of period at Dec. 31, 2020	$ 20	$ 73,713	$ 14	$ (66,544)	$ 7,203
Balance at beginning of period (shares) at Dec. 31, 2020	19,671,182
Increase (Decrease) in Stockholders' Equity
Issuance of common stock and warrants in connection with equity financing	$ 2	9,998			10,000
Issuance of common stock and warrants in connection with equity financing (in shares)	2,500,000
Transaction costs in connection with equity financing		(908)			(908)
Stock-based compensation		187			187
Foreign currency translation adjustment			(7)		(7)
Net loss				(3,324)	(3,324)
Balance at end of period at Mar. 31, 2021	$ 22	82,990	7	(69,868)	13,151
Balance at end of period (shares) at Mar. 31, 2021	22,171,182
Balance at beginning of period at Dec. 31, 2021	$ 27	96,394	4	(81,828)	14,597
Balance at beginning of period (shares) at Dec. 31, 2021	26,661,771
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		207			207
Foreign currency translation adjustment			(1)		(1)
Net loss				(2,875)	(2,875)
Balance at end of period at Mar. 31, 2022	$ 27	$ 96,601	$ 3	$ (84,703)	$ 11,928
Balance at end of period (shares) at Mar. 31, 2022	26,661,771