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INVENTORY (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Summary of Inventory
Inventory consisted of the following (in thousands): 
September 30, 2021December 31, 2020
 (unaudited) 
Raw materials$7,839 $7,395 
Work in progress2,949 2,890 
Finished goods26,363 26,569 
Total$37,151 $36,854