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INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of the components of inventories

The components of inventories are summarized below:

  

    June 30,     December 31,  
    2020     2019  
Raw materials   $ 2,392     $ 2,309  
Work in process     1,986       2,628  
Finished goods           46  
Provision for excess and obsolete inventory     (1,060 )     (429 )
Total inventories   $ 3,318     $ 4,554