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Intangible assets (Narrative) (Details) - CAD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2022
Sep. 30, 2021
Disclosure of detailed information about intangible assets [line items]      
Additions $ 163,230 $ 1,176,664 $ 83,228
Additions through acquisition 481,472 194,000 2,906,219
Amortization charge   10,927  
Recognition of open orders   (87,802)  
Development costs [Member]      
Disclosure of detailed information about intangible assets [line items]      
Additions 163,230    
Additions through acquisition 0    
Technology-based intangible assets [member]      
Disclosure of detailed information about intangible assets [line items]      
Additions 0    
Additions through acquisition $ 481,472    
Useful life 5 years    
Phantom System [Member]      
Disclosure of detailed information about intangible assets [line items]      
Additions   584,885 83,228
Additions through acquisition   0 0
Amortization charge   $ 0 0
Useful life   5 years  
Recognition of open orders   $ 0  
PARA OPS System [Member]      
Disclosure of detailed information about intangible assets [line items]      
Additions   562,996 0
Additions through acquisition   0 2,906,219
Amortization charge   $ 0 0
Useful life   5 years  
Recognition of open orders   $ 0  
PARA OPS Patent [Member]      
Disclosure of detailed information about intangible assets [line items]      
Additions   28,783 0
Additions through acquisition   0 0
Amortization charge   0 0
Recognition of open orders   0  
Purchase Orders [Member]      
Disclosure of detailed information about intangible assets [line items]      
Additions   0 0
Additions through acquisition   100,000 0
Amortization charge   0  
Recognition of open orders   (87,802)  
ARWEN Tradename [Member]      
Disclosure of detailed information about intangible assets [line items]      
Additions   0 0
Additions through acquisition   44,000 0
Amortization charge   $ 6,968  
Useful life   5 years  
Recognition of open orders   $ 0  
Customer Relationships [Member]      
Disclosure of detailed information about intangible assets [line items]      
Additions   0 0
Additions through acquisition   50,000 $ 0
Amortization charge   $ 3,959  
Useful life   10 years  
Recognition of open orders   $ 0