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SHAREHOLDERS' EQUITY (Tables)
 6 Months Ended
Jun. 30, 2018
Share-based Compensation [Abstract]  
Summary Of Stock Options And RSUs Granted
The following table summarizes the activities for the Company’s stock options and RSU’s for the six months ended June 30, 2018:

   
Six months ended
June 30, 2018
  
   
Number
of options
    
Weighted
average
exercise
price
    
Weighted average remaining contractual term
(in years)
    
Aggregate
intrinsic
value
  
                         
Outstanding at beginning of year
    
7,939,978
    
$
3.61
      
3.75
    
$
2,839
  
Granted
    
432,401
    
$
3.00
                  
Exercised
    
(314,384
)
  
$
1.75
                  
Forfeited or expired
    
(250,505
)
  
$
6.52
                  
                                 
Outstanding at end of the period
    
7,807,490
    
$
3.56
      
3.43
    
$
10,386
  
                                 
Options exercisable at end of the year
    
5,025,948
    
$
4.48
      
2.86
    
$
5,940
  
                                 
Vested and expected to vest
    
7,402,176
    
$
3.67
      
3.36
    
$
9,778
  


   
Number of RSUs
    
Aggregate intrinsic
value
  
             
Outstanding at beginning of year
    
327,093
    
$
648
  
Granted
    
-
          
Vested
    
(10,816
)
        
Forfeited
    
(13,150
)
        
                 
Outstanding at end of period
    
303,127
    
$
1,082
  
                 
Vested and expected to vest
    
220,420
    
$
787