OTHER LIABILITIES (Tables)
 12 Months Ended
Dec. 31, 2013
Other Liabilities Disclosure [Abstract]  
Schedule of other current liabilities
   
As of December 31,
  
   
2013
    
2012
  
Payroll related
   $ 1,269     $ 341  
Other liabilities
     735       344  
    $ 2,004     $ 685  
Schedule of other noncurrent liabilities
     
As of December 31,
  
     
2013
    
2012
  
 
Deferred rent
   $ 1,006     $ 323  
 
Deferred revenue and other noncurrent liabilities
     687       356  
      $ 1,693     $ 679