v3.26.3
Share capital - Authorized unlimited common shares, no par value (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Nov. 07, 2025
Aug. 31, 2026
May 31, 2026
Feb. 28, 2026
Aug. 31, 2025
May 31, 2025
Feb. 28, 2025
Aug. 31, 2026
Aug. 31, 2025
Nov. 30, 2025
Share capital                    
Unlimited common shares authorized               Unlimited   Unlimited
Common Stock, No Par Value   $ 0           $ 0   $ 0
At-the-market offering, net of share issue costs, Number of shares   0 0 174,410            
At-the-market offering, net of share issue costs, Ascribed value       $ 1,164            
Exercise of options, Number of shares               253,334 400,000  
Exercise of options, Ascribed value     $ 110 166 $ 22 $ 71 $ 131      
Equity distribution program, aggregate offering amount $ 200,000                  
Gross proceeds       $ 1,190            
Average price per share       $ 6.83            
Net proceeds       $ 1,160       $ 1,164    
Share capital                    
Share capital                    
Beginning balance, Number of shares       171,069,888       171,069,888    
Beginning balance, Ascribed value       $ 225,241       $ 225,241    
At-the-market offering, net of share issue costs, Number of shares       174,410       174,410    
At-the-market offering, net of share issue costs, Ascribed value       $ 1,164       $ 1,164    
Exercise of options, Number of shares     100,000 153,334 50,000 86,667 263,333 253,334    
Exercise of options, Ascribed value     $ 158 $ 246 $ 32 $ 110 $ 195 $ 404    
Shares issued from restricted share units, Number of shares   200,000 100,000 1,148,007   119,906 2,647,945 1,448,007    
Shares issued from restricted share units, Ascribed value               $ 1,296    
Ending balance, Number of shares outstanding   172,945,639           172,945,639   171,069,888
Ending balance, Ascribed value   $ 228,105           $ 228,105   $ 225,241