Certain Balance Sheet Accounts - Summary of Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Accrued payroll	$ 2,220	$ 592
Accrued research and development expenses	2,159	627
Other accrued expenses	248	0
Total accrued expenses	$ 4,627	$ 1,219