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SHAREHOLDERS' EQUITY (Tables)
12 Months Ended
Dec. 31, 2017
Share-based Compensation [Abstract]  
Summary Of Stock Options And RSUs Granted
The following is a summary of the Company's stock options and RSUs granted among the various plans:
 
   
Year ended
December 31, 2017
 
   
Number
of options
   
Weighted
average
exercise
price
   
Weighted average remaining contractual term
(in years)
   
Aggregate
intrinsic
value
 
                         
Outstanding at beginning of year
   
7,490,173
   
$
3.86
     
4.33
   
$
6,003
 
Granted
   
1,269,054
     
2.39
                 
Exercised
   
(237,410
)
   
1.19
                 
Forfeited or expired
   
(581,839
)
   
5.15
                 
                                 
Outstanding at end of the year
   
7,939,978
     $
3.61
     
3.75
    $
2,839
 
                                 
Options exercisable at end of the year
   
4,902,815
     
4.78
     
3.29
     
1,552
 
                                 
Vested and expected to vest
   
7,427,645
     
3.73
     
3.68
     
2,654
 
 
   
Year ended
 December 31, 2017
 
   
Number of
RSUs
   
Aggregate intrinsic value
 
             
Outstanding at beginning of year
   
47,535
   
$
125
 
Granted    
316,827
       
Exercised    
(37,269
)      
Forfeited      -          
           
Outstanding at end of the year     
327,093
   
$
648
 
                 
Vested and expected to vest      228,536    
$
453  
Summary Of Stock Options And RSUs Granted Separated Into Ranges Of Exercise Price
The following is a summary of the Company's stock options and RSUs granted separated into ranges of exercise price:

Exercise price
(range)
   
Options and RSUs outstanding
as of
December 31, 2017
   
Weighted
average
remaining
contractual
life (years)
   
Weighted
average
exercise
price
   
Options and RSUs exercisable
as of
December 31, 2017
   
Remaining contractual life (years for exercisable options
   
Weighted
average
exercise
price
 
$                  $                
$
 
                                             
RSUs 0.0
     
327,093
     
-
     
0.00
     
-
     
-
     
0.00
 
 
0.01-2.00
     
3,567,235
     
3.64
     
1.18
     
1,946,534
     
3.54
     
1.18
 
 
2.01-4.00
     
2,186,076
     
4.82
     
2.43
     
769,614
     
3.84
     
2.58
 
 
4.01-6.00
     
712,509
     
2.56
     
5.16
     
712,509
     
2.56
     
5.16
 
 
6.01-8.00
     
37,000
     
3.98
     
6.73
     
37,000
     
3.98
     
6.73
 
 
8.01-10.00
     
777,574
     
3.08
     
9.07
     
777,574
     
3.08
     
9.07
 
 
10.01-13.04
     
659,584
     
2.89
     
12.38
     
659,584
     
2.89
     
12.38
 
                                                     
         
8,267,071
                     
4,902,815
Schedule Of Equity-Based Compensation Expense
The total equity-based compensation expense related to all of the Company's equity-based awards, recognized for the years ended December 31, 2015, 2016 and 2017, was comprised as follows:

   
Year ended
December 31,
 
   
2015
   
2016
   
2017
 
                   
Cost of revenues
 
$
73
   
$
30
   
$
54
 
Research and development
   
736
     
151
     
229
 
Selling and marketing
   
495
     
369
     
292
 
General and administrative
   
321
     
521
     
628
 
                         
Total stock-based compensation expenses
 
$
1,625
   
$
1,071
   
$
1,203