v3.25.2
Share capital - Stock options plans and changes (Details) - $ / shares
3 Months Ended 9 Months Ended
Aug. 31, 2025
May 31, 2025
Aug. 31, 2025
Aug. 31, 2024
Share capital        
Number of options, Exercised     (400,000) 0
Weighted average exercise price, Exercised     $ 0.79  
Balance - end of period, number of options 11,715,234   11,715,234  
Balance - end of period, weighted average exercise price $ 1.45   $ 1.45  
Stock options        
Share capital        
Balance - beginning of the year, number of options     13,630,234  
Balance - beginning of the year, weighted average exercise price     $ 1.77  
Number of options, Granted 0 0 2,125,000  
Weighted average exercise price, Granted     $ 1.52  
Number of options, Exercised     (400,000)  
Weighted average exercise price, Exercised     $ 0.79  
Number of options, Expired     (3,640,000)  
Weighted average exercise price, Expired     $ 2.75  
Balance - end of period, number of options 11,715,234   11,715,234  
Balance - end of period, weighted average exercise price $ 1.45   $ 1.45