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Balance Sheet Components - Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Balance Sheet Related Disclosures [Abstract]    
Accrued research and development $ 12,440 $ 11,041
Accrued personnel costs 3,796 5,238
Accrued professional and consulting fees 683 200
Other 243 883
Total accrued liabilities $ 17,162 $ 17,362