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Inventory (Tables)
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventory consists of the following:
(in thousands)MARCH 31, 2020DECEMBER 31, 2019
Raw materials$1,878  $1,400  
Work-in-process14,190  13,414  
Finished goods4,157  6,240  
Total inventory$20,225  $21,054