Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Employee compensation costs	$ 204	$ 987
Contract research and development costs	117	685
Lease liabilities, current	12	183
Restrucuring costs	0	1,734	$ 0
Other current liabilities	$ 487	$ 539
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities and Other Liabilities	Accrued Liabilities and Other Liabilities
Total accrued expenses and other current liabilities	$ 820	$ 4,128