XML 53 R24.htm IDEA: XBRL DOCUMENT v3.8.0.1
STOCK OPTIONS (Tables)
 12 Months Ended
Dec. 31, 2017
Statement [Line Items]  
Disclosure of number and weighted average exercise prices of share options [Table Text Block]
      Number of     Weighted average  
      Stock options     exercise price  
             $  
  DECEMBER 31, 2015   6,217,334     1.24  
               
  Granted   1,550,000     0.96  
  Exercised   (270,666 )   0.70  
  Expired   (1,525,000 )   2.84  
               
  DECEMBER 31, 2016   5,971,668     0.79  
               
  Exercised   (1,688,333 )   0.85  
               
  DECEMBER 31, 2017   4,283,335     0.76  
Disclosure of number and weighted average remaining contractual life of outstanding share options [Table Text Block]
  Stock options outstanding,   Number of     Weighted average     Average  
  by exercise price   Stock options     exercise price     remaining  
                  contractual life  
             $     years  
  $0.50   741,667     0.50     2.61  
  $0.60 – 0.67   1,300,000     0.61     0.65  
  $0.80 – 0.88   658,334     0.88     1.54  
  0.96   1,583,334     0.96     3.62  
                     
  DECEMBER 31, 2017   4,283,335     0.76     2.23