v3.26.1
Share capital (Schedule of warrant activity) (Details) - Warrants [Member] - USD ($)
6 Months Ended 12 Months Ended
Apr. 30, 2026
Oct. 31, 2025
Oct. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Number of Warrants Outstanding, Beginning balance 9,733,226 796,559  
Number of Warrants , Granted 563,573 8,936,667  
Number of Warrants, Exercised 1,063,573 0  
Number of Warrants, Cancelled/Forfeited 0 0  
Number of Warrants Outstanding, Ending balance 9,233,226 9,733,226 796,559
Number of Warrants, Exercisable 6,233,226    
Weighted average exercise price, Beginning balance $ 0.3 $ 0.75  
Weighted average exercise price, Granted 2.3 0.26  
Weighted average exercise price, Exercised 0.4 0  
Weighted average exercise price, Cancelled/Forfeited 0 0  
Weighted average exercise price, Ending balance 0.41 $ 0.3 $ 0.75
Weighted average exercise price, Exercisable $ 0.6    
Weighted average remaining contractual life, Outstanding 2 years 8 months 15 days 3 years 1 month 13 days
Weighted average remaining contractual life, Exercisable 2 years 14 days    
Aggregate intrinsic value, Outstanding, Beginning balance $ 19,505,021 $ 0  
Aggregate intrinsic value, Outstanding, Ending balance 33,183,795 $ 19,505,021 $ 0
Aggregate intrinsic value, Exercisable $ 21,186,795