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Inventories (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of composition of inventories The composition of inventories is as follows (dollar amounts in thousands):
September 30,
2021
December 31,
2020
Raw materials$19,603 $13,956 
Work in progress1,619 1,351 
Finished goods36,154 32,376 
Total inventories$57,376 $47,683