Annual reports filed by certain Canadian issuers pursuant to Section 15(d) and Rule 15d-4

Warrants (Schedule of Warrant Activity) (Details)

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Warrants (Schedule of Warrant Activity) (Details)
 12 Months Ended
Dec. 31, 2018
CAD ($)
shares
Dec. 31, 2017
CAD ($)
shares
Number    
Outstanding - Beginning of year | shares 1,498,052 1,961,791
Granted | shares 619,505 266,814
Exercised | shares [1] (626,875) (627,256)
Outstanding - End of year | shares 1,474,477 1,498,052
Weighted average exercise price    
Outstanding - Beginning of year $ 2.26 $ 2.23
Granted 6.65 2.4
Exercised $ 2.18 $ 2.21
Warrants [Member]    
Number    
Outstanding - Beginning of year | shares 2,087,598 2,725,596
Granted | shares 134,766 144,231
Exercised | shares (2,029,905) (782,229)
Outstanding - End of year | shares 192,459 2,087,598
Weighted average exercise price    
Outstanding - Beginning of year $ 2.46 $ 2.27
Granted 6.53 4.22
Exercised 2.41 2.18
Amount    
Opening balance 674,000 660,000
Granted 332,000 208,000
Exercised (591,000) (194,000)
Closing balance 415,000 674,000
Weighted average grant date value per warrant of warrants issued $ 2.47 $ 1.44
[1] Of the 626,875 (2017 - 627,256) options exercised, 443,748 (2017 - 548,833) elected the cashless exercise, under which 297,626 shares (2017 - 238,130) were issued. These options would have otherwise been exercisable for proceeds of $975 (2017 - $1,227) on the exercise date.