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Trade and other receivables - Schedule of unbilled trade and other receivables (Details) - CAD ($)
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Trade and other receivables [abstract]    
Balance, beginning of year $ 308,728 $ 0
Unbilled Receivables, decrease from revenue billed (308,728)  
Revenue in excess of billings, net of amounts transferred to trade accounts receivable 8,881 308,728
Amounts written off 0 0
Balance, end of year 8,881 308,728
Current 8,881 308,728
Non-current $ 0 $ 0