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Balance Sheet Details - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
Accrued compensation (including related party amounts of $0 and $32, respectively) $ 805 $ 1,171
Accrued research and development 3,937 2,130
Other accrued liabilities 332 478
Accrued liabilities $ 5,074 $ 3,779