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Share capital, Restricted Stock Units (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Jul. 31, 2025
Number of RSUs [Abstract]      
Share-based payments $ 33,409    
Restricted Stock Units (RSUs) [Member]      
Restricted Stock Units [Abstract]      
Intrinsic value of options outstanding 0    
Intrinsic value of options exercisable $ 0    
Number of RSUs [Abstract]      
Outstanding (in shares) 148,308 121,475 121,475
Granted (in shares) 0 0 30,586
Forfeited (in shares)     (3,753)
Outstanding (in shares) 148,308   148,308
Number of RSUs vested (in shares) 121,491    
Share-based payments $ 41,895 $ 126,343  
Restricted Stock Units (RSUs) [Member] | November 30, 2021 [Member]      
Number of RSUs [Abstract]      
Outstanding (in shares) 917    
Number of RSUs vested (in shares) 917    
Restricted Stock Units (RSUs) [Member] | December 24, 2021 [Member]      
Number of RSUs [Abstract]      
Outstanding (in shares) 38,232    
Number of RSUs vested (in shares) 32,496    
Restricted Stock Units (RSUs) [Member] | March 1, 2022 [Member]      
Number of RSUs [Abstract]      
Outstanding (in shares) 1,009    
Number of RSUs vested (in shares) 1,009    
Restricted Stock Units (RSUs) [Member] | March 14, 2022 [Member]      
Number of RSUs [Abstract]      
Outstanding (in shares) 62,702    
Number of RSUs vested (in shares) 53,985    
Restricted Stock Units (RSUs) [Member] | July 30, 2024 [Member]      
Number of RSUs [Abstract]      
Outstanding (in shares) 14,862    
Number of RSUs vested (in shares) 7,086    
Restricted Stock Units (RSUs) [Member] | March 26, 2025 [Member]      
Number of RSUs [Abstract]      
Outstanding (in shares) 30,586    
Number of RSUs vested (in shares) 25,998