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STOCK CAPITAL (Tables)
6 Months Ended
Jun. 30, 2018
Stockholders' Equity Note [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of the Company's option activity related to options to employees and directors, and related information is as follows:
 
 
 
For the six months ended
June 30, 2018
 
 
 
Amount of
options
 
 
Weighted
average
exercise
price
 
 
Aggregate intrinsic
value
 
 
 
 
 
 
 
 
$
 
 
 
$
 
Outstanding at beginning of period
 
 
940,954
 
 
 
2.4681
 
 
 
 
 
Granted
 
 
-
 
 
 
-
 
 
 
 
 
Exercised
 
 
(33,332
)
 
 
0.7500
 
 
 
 
 
Cancelled
 
 
-
 
 
 
-
 
 
 
 
 
Outstanding at end of period
 
 
907,622
 
 
 
2.5312
 
 
 
1,242,396
 
Vested and expected-to-vest at end of period
 
 
797,824
 
 
 
2.3594
 
 
 
1,229,120
 
Schedule Stock Awards Activity Related To Service Providers [Table Text Block]
The total stock-based compensation expense, related to shares, options and warrants granted to employees, directors and service providers was comprised, at each period, as follows:
 
 
 
Six months ended
June 30,
 
 
 
2 0 1 8
 
 
2 0 1 7
 
 
 
 
 
Research and development
 
 
48
 
 
 
75
 
General and administrative
 
 
315
 
 
 
108
 
Total stock-based compensation expense
 
 
363
 
 
 
183