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LOSS PER SHARE (Tables)
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Schedule of Loss and Weighted Average Number of Shares
The loss and the weighted average number of shares used in computing basic and diluted loss per share for the nine and three-month periods ended September 30, 2017 and 2016 are as follows:
 
   
US dollars
    
US dollars
  
   
Nine-month period
ended September 30,
    
Three-month period
ended September 30,
  
   
2017
    
2016
    
2017
    
2016
  
   
(unaudited)
    
(unaudited)
  
Loss for the period
    
(7,672,266
)
    
(4,270,506
)
    
(2,584,740
)
    
(1,454,744
)
Cash dividend on Series A Preferred Stock
    
(19,243
)
    
(13,529
)
    
(12,529
)
    
(4,076
)
Stock dividend on Series B Preferred Stock
    
(609,582
)
    
(449,051
)
    
(117,914
)
    
(194,950
)
Stock dividend on Series C Preferred Stock
    
(370,325
)
    
(80,082
)
    
(93,751
)
    
(59,727
)
Loss for the period attributable to common stockholders
    
(8,671,416
)
    
(4,813,168
)
    
(2,808,934
)
    
(1,713,497
)

   
Number of shares
    
Number of shares
  
   
Nine-month period
ended September 30,
    
Three-month period
ended September 30,
  
   
2017
    
2016
    
2017
    
2016
  
Number of shares:
            
Common shares used in computing basic income (loss) per share
    
6,207,844
      
5,746,838
      
6,386,772
      
5,806,724
  
Common shares used in computing diluted income (loss) per share
    
6,207,844
      
5,746,838
      
6,386,772
      
5,806,724
  
Total weighted average number of common shares related to outstanding convertible Preferred Stock, options and warrants excluded from the calculations of diluted income (loss) per share (*)
    
20,304,950
      
12,125,368
      
23,378,950
      
13,915,740
  

(*)
All outstanding convertible Preferred Stock, stock options and warrants have been excluded from the calculation of the diluted net loss per share for all the reported periods, because the effect of the common shares issuable as a result of the exercise or conversion of these instruments was determined to be anti-dilutive.