Net Loss Per Share - Computation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net loss	$ (1,219)	$ (4,539)
Warrant Modification	(25)	0
Net loss attributable to common stockholders	$ (1,244)	$ (4,539)
Denominator:
Weighted-average number of shares of common stock - basic (in shares)	2,065	2,065
Weighted-average number of shares of common stock - diluted (in shares)	2,065	2,065
Basic net loss per share (in dollars per share)	$ (0.60)	$ (2.20)
Diluted net loss per share (in dollars per share)	$ (0.60)	$ (2.20)