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Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Accrued compensation $ 4,596 $ 6,330
Accrued distribution expenses 2,533 1,722
Other 495 517
Total accrued expenses $ 7,624 $ 8,569