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Inventory (Tables)
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Schedule of inventory
Inventory consisted of the following:
        
(in thousands)March 31,
2022
December 31,
2021
Raw materials$13,861 $15,505 
Work in process13,071 13,042 
Finished goods7,317 6,582 
Total inventory$34,249 $35,129