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Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Payables And Accruals [Abstract]    
Compensation related accruals $ 4,029 $ 3,975
Accrued clinical trial expense 870 715
Other expenses 2,766 3,099
Total accrued liabilities $ 7,665 $ 7,789