Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Share capital (Details 1)

v3.19.1
Share capital (Details 1) - Stock options
12 Months Ended
Dec. 31, 2018
$ / shares
shares
Dec. 31, 2018
$ / shares
shares
Disclosure of classes of share capital [line items]    
Weighted average contractual life 4 years 3 months 18 days  
Number of options outstanding 4,756,174 4,756,174
Number of options exercisable 3,742,275 3,742,275
Exercise price $ 0.30    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares $ 0.30  
Weighted average contractual life 3 years 5 months 12 days  
Number of options outstanding 2,045,455 2,045,455
Number of options exercisable 2,045,455 2,045,455
Exercise price $ 0.30    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares $ 0.30  
Weighted average contractual life 3 years 7 months 13 days  
Number of options outstanding 308,522 308,522
Number of options exercisable 263,529 263,529
Exercise price $ 0.80    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares $ 0.80  
Weighted average contractual life 3 years 11 months 9 days  
Number of options outstanding 677,273 677,273
Number of options exercisable 522,065 522,065
Exercise price $ 0.80    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares $ 0.80  
Weighted average contractual life 4 years 2 months 5 days  
Number of options outstanding 12,500 12,500
Number of options exercisable 8,854 8,854
Exercise price $ 2.00    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares $ 2.00  
Weighted average contractual life 4 years 5 months 19 days  
Number of options outstanding 12,500 12,500
Number of options exercisable 8,594 8,594
Exercise price $ 2.00    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares $ 2.00  
Weighted average contractual life 5 years 1 month 17 days  
Number of options outstanding 357,500 357,500
Number of options exercisable 243,646 243,646
Exercise price $ 2.00    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares $ 2.00  
Weighted average contractual life 5 years 7 months 10 days  
Number of options outstanding 50,000 50,000
Number of options exercisable 17,708 17,708
Exercise price $ 9.60    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares   $ 9.60
Weighted average contractual life 6 years 7 days  
Number of options outstanding 337,500 337,500
Number of options exercisable 110,000 110,000
Exercise price $ 9.00    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares   $ 9.00
Weighted average contractual life 6 years 3 months 18 days  
Number of options outstanding 150,000 150,000
Number of options exercisable 112,500 112,500
Exercise price $ 9.16    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares   $ 9.16
Weighted average contractual life 6 years 7 months 10 days  
Number of options outstanding 275,000 275,000
Number of options exercisable 0 0
Exercise price $ 1.53    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares   $ 1.53
Weighted average contractual life 4 years 10 months 21 days  
Number of options outstanding 120,000 120,000
Number of options exercisable 0 0
Exercise price $ 5.00    
Disclosure of classes of share capital [line items]    
Exercise price | $ / shares   $ 5.00
Weighted average contractual life 4 years 11 months 1 day  
Number of options outstanding 409,924 409,924
Number of options exercisable 409,924 409,924