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Inventory (Tables)
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventory consists of the following:
(in thousands)MARCH 31, 2021DECEMBER 31, 2020
Raw materials$2,695 $1,875 
Work-in-process22,365 21,648 
Finished goods3,264 3,536 
Total inventory$28,324 $27,059