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Commitments and contingencies (Narrative) (Details) - CAD ($) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 05, 2021 | Apr. 23, 2021 | May 31, 2020 | Nov. 18, 2019 | Mar. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2024 | Nov. 18, 2024 | Dec. 31, 2023 | Nov. 18, 2023 | Dec. 31, 2022 | Nov. 18, 2022 | Dec. 31, 2021 | Nov. 18, 2021 | Sep. 30, 2021 | Nov. 18, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issued price per share |  |  | $ 31.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 66.67
Fair value of common shares issued for amended and restated license agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 137,000 |  |  |
AerialX Drone Solutions [Member] | Amended and restated licensing agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | 1,429 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of additional shares to be issued upon achieving technical milestones | 1,429 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of additional shares to be issued upon achieving performance milestones | 4,286 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issued price per share |  | $ 95.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of common shares issued for amended and restated license agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,000 |  |  |
License cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 137,000 |  |  |
Minimum annual royalty payment |  |  |  |  |  |  |  | $ 500,000 |  | $ 400,000 |  | $ 300,000 |  | $ 200,000 |  | $ 150,000 |  |
Payment of advanced royalty |  |  |  |  | $ 150,000 |  |  |  |  |  |  |  |  |  |  |  |  |
AerialX Drone Solutions [Member] | Amended and restated licensing agreement [Member] | Bottom of range [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of royalty on annual sales |  |  |  | 8.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
AerialX Drone Solutions [Member] | Amended and restated licensing agreement [Member] | Top of range [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of royalty on annual sales |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Drone Bullet [Member] | Non-exclusive license agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of royalty on annual sales |  |  |  | 8.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of advanced royalty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 150,000 |
Drone Bullet [Member] | Non-exclusive license agreement [Member] | Subsequent events [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum annual royalty payment |  |  |  |  |  | $ 150,000 | $ 500,000 |  | $ 400,000 |  | $ 300,000 |  | $ 200,000 |  |  |  |  |

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