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Income taxes (Narrative) (Details) - CAD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2019
Major components of tax expense (income) [abstract] |  |  |  |
Applicable tax rate | 26.50% | 26.50% | 26.50% | 26.50%
Recognized estimated investment tax credits | $ 127,325 |  |  |

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- Definition The applicable income tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- References No definition available. + Details
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- Definition It represents as a investment tax credits refundable. + References No definition available. + Details
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