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Inventory
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventory Inventory
    Inventory consists of the following (in thousands):
December 31,
20202019
Raw materials$2,422 $1,673 
Work-in-process10,703 8,267 
Finished goods2,167 2,725 
Total inventory$15,292 $12,665