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OTHER LONG-TERM ASSETS
 12 Months Ended
Dec. 31, 2017
Other Assets, Noncurrent Disclosure [Abstract]  
OTHER LONG-TERM ASSETS
NOTE 5:-
OTHER LONG-TERM ASSETS

   
December 31,
  
   
2017
    
2016
  
             
Severance pay fund
  
$
14,859
    
$
14,701
  
Long-term deposits
    
3,637
      
3,000
  
Investments in affiliate
    
1,000
      
1,000
  
                 
   
$
19,496
    
$
18,701