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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
Payroll and employee related expenses $ 2,182 $ 2,096
Third-party research and development expenses 897 632
Professional fees and other 712 710
Accrued expenses $ 3,791 $ 3,438