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v3.22.4

Commitments and contingencies - Schedule of performance milestones (Details) - Amended and restated licensing agreement [Member] - Aerialx Technology [Member] $ in Millions | 12 Months Ended
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Sep. 30, 2022 CAD ($) shares
First milestone [Member] |
Disclosure of contingent liabilities [line items] |
Number of Common Shares | shares | 1,071
Milestone, amount in sales | $ | $ 3
Second milestone [Member] |
Disclosure of contingent liabilities [line items] |
Number of Common Shares | shares | 1,429
Milestone, amount in sales | $ | $ 9
Third milestone [Member] |
Disclosure of contingent liabilities [line items] |
Number of Common Shares | shares | 1,786
Milestone, amount in sales | $ | $ 18

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