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INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Components of Inventory Inventories consisted of the following:
June 30, 2020December 31, 2019
Raw materials$26,180  $26,173  
Work-in-process16,170  12,194  
Finished goods17,153  15,045  
Supplies257  316  
 $59,760  $53,728