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Inventories (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventories for the Period The following table summarizes the components of inventories:
(in thousands)September 30, 2021December 31, 2020
Raw materials$5,350 $5,547 
Work-in-process11,975 7,693 
Finished goods4,747 6,316 
Total inventories$22,072 $19,556