Condensed Consolidated Statements of Stockholder's Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance at Dec. 31, 2022	$ 16	$ 343,750	$ (290,969)	$ (679)	$ (288)	$ 51,830
Balance (in shares) at Dec. 31, 2022	15,844,061
Stock-based compensation		126				126
Foreign currency exchange gains (losses)				374		374
Net loss			(4,478)			(4,478)
Balance at Mar. 31, 2023	$ 16	343,876	(295,447)	(305)	(288)	47,852
Balance (in shares) at Mar. 31, 2023	15,844,061
Balance at Dec. 31, 2023	$ 18	346,519	(309,318)	32	(288)	36,963
Balance (in shares) at Dec. 31, 2023	17,868,282
Stock-based compensation		160				160
Foreign currency exchange gains (losses)				(569)		(569)
Net loss			(5,165)			(5,165)
Balance at Mar. 31, 2024	$ 18	$ 346,679	$ (314,483)	$ (537)	$ (288)	$ 31,389
Balance (in shares) at Mar. 31, 2024	17,868,282