Basis of Presentation and Summary of Significant Accounting Policies - Basis of presentation (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Jun. 16, 2023	Jun. 15, 2023	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Nov. 16, 2022 USD ($)	Sep. 30, 2022 USD ($)	Aug. 23, 2022 d $ / shares	Dec. 31, 2021 USD ($)
Accounting Policies [Abstract]
Net loss			$ (4,293)	$ (10,279)
Net cash used in operating activities			$ (2,439)	(6,713)
Common stock, minimum bid price (in dollars per share) | $ / shares			$ 1.00
Closing bid price of common stock (in dollars per share) | $ / shares							$ 1.00
Number of consecutive days for which the bid price was below threshold | d							30
Stockholders' equity			$ 3,051	$ (477)	$ 2,500	$ 1,500		$ 6,209
Reverse stock split ratio	0.142857	0.142857