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Inventory (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventory consisted of the following as of September 30, 2021 and December 31, 2020 (in thousands):
September 30,
2021
December 31,
2020
Raw materials$7,781 $5,228 
Work in process635 667 
Finished goods3,188 3,279 
Total inventories$11,604 $9,174