SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2017
Significant Accounting Policies Tables  
Schedule of Fair Value Assumptions
Fair values were estimated using the following assumptions (annualized percentages):

   
Year Ended December 31,
  
   
2015
  
       
Dividend yield
    
0%
 
Expected volatility
    
53.1%
 
Risk-free interest
    
1.6%
 
Expected life
  
5.83 years
  
Early exercise multiple
    
4.0%