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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Accrued Liabilities Current [Abstract]    
Compensation and benefit costs $ 1,929 $ 3,320
Research and development expenses 1,146 854
Professional fees, consulting and other 765 1,257
Total accrued expenses $ 3,840 $ 5,431