Loss per share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Numerator:
Net loss from continuing operations	$ (3,057)	$ (12,593)
Net gain from discontinued operations	0	7,330
Net loss	$ (3,057)	$ (5,263)
Denominator:
Weighted average shares used in calculating net gain (loss) per share - basic	2,518	2,338
Weighted average shares used in calculating net gain (loss) per share - Diluted	2,518	2,338
Net gain (loss) per share - basic
Net loss per share from continuing operations	$ (1.21)	$ (5.39)
Net gain per share from discontinued operations	0	3.14
Total loss per share	(1.21)	(2.25)
Net gain (loss) per share - diluted
Net loss per share from continuing operations	(1.21)	(5.39)
Net gain per share from discontinued operations	0	3.14
Total loss per share	$ (1.21)	$ (2.25)