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Inventory (Tables)
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Inventory Inventory consisted of the following (in thousands):
 March 31, 2022December 31, 2021
Raw materials$536 $364 
Work in process7,229 6,112 
Finished goods5,405 4,913 
Inventory$13,170 $11,389