Organization - Additional Information (Details) - USD ($) $ in Thousands	Jul. 17, 2024	Jan. 31, 2024	Aug. 14, 2023	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Cash, cash equivalents and restricted cash				$ 2,464		$ 6,062	$ 18,317	$ 52,996
Accumulated deficit				$ 918,577	$ 918,900	$ 915,767
Common stock, shares authorized				5,000,000		5,000,000
Common stock, shares outstanding				1,601,252		1,601,252
Strategic advisor name			Cantor
Pre Stock Split Shares Authorized	34,666,667	520,000,000
Post Stock Split Shares Authorized	5,000,000	34,666,667
Stockholders' Equity, Reverse Stock Split	The Third Charter Amendment became effective on July 17, 2024.	The Second Charter Amendment became effective on January 31, 2024.
Common Stock [Member]
Common stock, shares outstanding				1,601,252
Common stock reserved for future issuance				175,476