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Inventory (Tables)
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventory consists of the following:
(in thousands)SEPTEMBER 30, 2020DECEMBER 31, 2019
Raw materials$2,724 $1,400 
Work-in-process15,639 13,414 
Finished goods2,479 6,240 
Total inventory$20,842 $21,054