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

Share capital (Details)

v3.19.1
Share capital (Details) - Stock options - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of classes of share capital [line items]    
Number of options, Options outstanding, beginning 28,598,750 28,087,500
Number of options, Options granted 1,307,424 560,000
Number of options, Options exercised (6,198) (6,250)
Number of options, Options expired and forfeited (143,802) (42,500)
Number of options, Options outstanding, ending 4,756,174 28,598,750
Weighted average exercise price, Options outstanding, beginning $ 0.40 $ 0.38
Weighted average exercise price, Options granted 9.29 2.00
Weighted average exercise price, Options exercised 2.00 0.30
Weighted average exercise price, Options expired and forfeited 3.03 2.00
Weighted average exercise price, Options outstanding, ending 2.73 $ 0.40
Weighted average exercise price, Options cancelled $ 0.37  
Number of options, Options cancelled (25,000,000)