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INVENTORY (Tables)
12 Months Ended
Dec. 31, 2015
INVENTORY [Abstract].  
Schedule of Inventory, Net


December 31,


2015  
2014 
                 
Raw materials and components 
$ 9,823

$ 11,333
Work in progress     19,798
      14,673  
Spare parts     6,340       8,956  
Finished goods     703       515  

   
     
 

  $ 36,664     $ 35,477