Balance Sheet Components - Summary of Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accrued Liabilities, Current [Abstract]
Accrued research and development-related expenses	$ 1,201	$ 495
Accrued research and development-related expenses-related party		500
Accrued professional services expenses	582	50
Accrued offering costs	10	313
Other	9	41
Total accrued liabilities	$ 1,802	$ 1,399