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INVENTORY (Tables)
 12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory, Net
Inventory is composed of the following:

   
December 31,
  
   
2020
    
2019
  
             
Raw materials and components
  
$
11,281
    
$
13,064
  
Work in progress
    
15,432
      
11,387
  
Spare parts
    
13,147
      
18,272
  
Finished goods
    
1,363
      
604
  
                 
Total inventory (**)
  
$
41,223
    
$
43,327
  
 
(**) The total amount of Rotables included in the company spare parts inventory for the years ended December 31, 2020 and 2019 were $9,183 and $8,886, respectively. Inventory related to discontinued operation for the year ended December 31, 2019 was $580.