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Convertible debentures, Envviron Tranche (Details)
12 Months Ended
Nov. 13, 2024
USD ($)
$ / shares
Nov. 06, 2024
$ / shares
Jul. 31, 2025
USD ($)
$ / shares
shares
Jul. 31, 2025
$ / shares
Apr. 30, 2025
USD ($)
Jul. 31, 2024
USD ($)
Apr. 23, 2024
USD ($)
Jul. 31, 2023
USD ($)
Nov. 04, 2022
USD ($)
Convertible Debt [Abstract]                  
Derivative liability     $ 72,500     $ 919,250     $ 1,836,666
Convertible Debentures [Member]                  
Convertible Debt [Abstract]                  
Principal amount $ 3,345,000                
Interest rate 5.30%                
Percentage of conversion price discount 25.00%                
Period of volume weighted average trading price     20 days            
Floor price (in dollars per share) | $ / shares $ 8.67                
Related Party [Member] | Envviron SAS [Member]                  
Convertible Debt [Abstract]                  
Derivative liability     $ 72,500     $ 919,250   $ 0  
Related Party [Member] | Envviron SAS [Member] | Convertible Debentures [Member]                  
Convertible Debt [Abstract]                  
Principal amount     $ 14,102,499       $ 250,000    
Interest rate             5.30%    
Percentage of conversion price discount   25.00% 25.00%            
Period of volume weighted average trading price     20 days            
Conversion price (in dollars per share) | (per share)     $ 20 $ 4.75          
Number of repayable day     10 days            
De-SPAC transaction period     270 days            
Share purchase warrant (in shares) | shares     0.5            
Percentage of premium to volume weighted average price     20.00%            
Conversion expiry term     2 years            
Derivative liability             $ 2,750    
Floor price (in dollars per share) | $ / shares   $ 20              
Equity, Fair Value Disclosure         $ 31,000        
Related Party [Member] | Envviron SAS [Member] | Convertible Debentures [Member] | Warrant [Member]                  
Convertible Debt [Abstract]                  
Period of volume weighted average trading price     30 days            
Related Party [Member] | Envviron SAS [Member] | Convertible Debentures [Member] | SVS [Member]                  
Convertible Debt [Abstract]                  
Number of securities called by each Unit (in shares) | shares     1