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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Inventories
Inventories consisted of the following (in thousands):
 March 31, 2022December 31, 2021
Raw materials$7,229 $8,519 
Work in process304 304 
Finished goods10,284 11,099 
Total$17,817 $19,922