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PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables)
12 Months Ended
Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepaid Expense And Other Current Assets
     December 31,  
     2013      2014  

Government authorities

   $ 34       $ 18   

Hedging transaction assets

     225         —     

Prepaid expenses

     1,466         1,793   

Other current assets

     358         267   
  

 

 

    

 

 

 
$ 2,083    $ 2,078