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Accrued Compensation and Related Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Accrued Compensation and Related Expenses    
Accrued salaries and wages $ 6,048 $ 1,386
Accrued paid time off 1,393 518
Accrued compensation and related expenses, Total $ 7,441 $ 1,904