v3.26.1
Share capital - Stock options plans and changes (Details) - $ / shares
 3 Months Ended 6 Months Ended
May 31, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Share capital        
Number of options, Granted 0 0    
Number of options, Exercised     (253,334) (350,000)
Weighted average exercise price, Exercised     $ 1.49  
Balance - end of period, number of options 9,835,250   9,835,250  
Balance - end of period, weighted average exercise price $ 2.01   $ 2.01  
Stock options        
Share capital        
Balance - beginning of the year, number of options     8,433,584  
Balance - beginning of the year, weighted average exercise price     $ 1.11  
Number of options, Granted     1,655,000  
Weighted average exercise price, Granted     $ 6.53  
Number of options, Exercised     (253,334)  
Weighted average exercise price, Exercised     $ 1.49  
Balance - end of period, number of options 9,835,250   9,835,250  
Balance - end of period, weighted average exercise price $ 2.01   $ 2.01