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

Subsequent event (Details)

v3.19.1
Subsequent event (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
Mar. 11, 2019
CAD ($)
shares
$ / shares
Mar. 06, 2019
CAD ($)
$ / shares
shares
Feb. 15, 2018
CAD ($)
$ / shares
shares
Jun. 21, 2017
CAD ($)
$ / shares
shares
Dec. 31, 2018
CAD ($)
shares
Dec. 31, 2017
CAD ($)
shares
Disclosure of non-adjusting events after reporting period [line items]            
Shares issued in public offering | shares     2,246,094 2,403,846    
Shares issued price per share in public offering | $ / shares     $ 6.40 $ 4.16    
Proceeds from public offering     $ 14,375 $ 10,000 $ 14,375 $ 10,000
Exercised options to purchase common stock | shares [1]         626,875 627,256
Proceeds from options exercises         $ 391 $ 109
Commissions and offering expenses     $ 863 $ 600 $ 1,148 $ 990
Shares issued in public offering [Member]            
Disclosure of non-adjusting events after reporting period [line items]            
Shares issued in public offering | shares   4,900,000        
Shares issued price per share in public offering | $ / shares   $ 5.45        
Proceeds from public offering   $ 26,700        
Underwriters [Member]            
Disclosure of non-adjusting events after reporting period [line items]            
Exercised options to purchase common stock | shares 504,855          
Exercise price of option | $ / shares $ 5.45          
Additional proceeds from options exercises $ 2,750          
Proceeds from options exercises 29,460          
Commissions and offering expenses $ 2,000          
[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.