v3.26.1
Share capital (Schedule of stock option activity) (Details) - Options [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, Options, Outstanding [Roll Forward]      
Number of options, Beginning balance 675,000 0  
Number of options, Granted 210,000 675,000  
Number of options, Exercised 0 0  
Number of options, Cancelled or forfeited 150,000 0  
Number of options, Ending balance 735,000 675,000 0
Number of options, Exercisable 425,000    
Weighted average exercise price, Beginning balance $ 0.61 $ 0  
Weighted average exercise price, Granted 2.3 0.61  
Weighted average exercise price, Exercised 0 0  
Weighted average exercise price, Cancelled or forfeited 0.8 0  
Weighted average exercise price, Ending balance 1.05 $ 0.61 $ 0
Weighted average exercise price, Exercisable $ 0.54    
Weighted average remaining contractual life, Outstanding 3 years 10 months 17 days 3 years 2 months 19 days
Weighted average remaining contractual life, Granted 4 years 9 months 7 days 3 years 2 months 19 days  
Weighted average remaining contractual life, Exercisable 3 years 4 months 17 days    
Aggregate intrinsic value, outstanding, Beginning balance $ 0 $ 0  
Aggregate intrinsic value, outstanding, Ending balance 2,167,000 $ 0 $ 0
Aggregate intrinsic value, Exercisable $ 1,470,000