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Supplemental cash flow information - Schedule of non-cash working capital (Details) - CAD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2019
Supplemental Cash Flow Information [Abstract] |  |  |  |
Trade and other receivables | $ (257,588) | $ 631,801 | $ (218,334) | $ (41,465)
Inventories | 0 | 49,446 | 17,555 |
Prepaid expenses and other | (387,762) | 425,876 | (106,205) | (36,629)
Other assets | 0 |  |  | (150,000)
Accounts payable and accrued liabilities | 393,202 | 2,515,289 | (828,698) | 86,519
Contract liabilities | 7,053 | 17,410 | (7,053) | 0
Deposits | 0 | 0 | 150,000 |
Accrued royalties liability | 0 | 0 | 1,191,219 |
Changes in working capital | $ (245,095) | $ 3,639,822 | $ 198,484 | $ (141,575)

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- Definition Adjustments for decrease (increase) in other assets to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Other assets; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Adjustments for the decrease (increase) in prepaid expenses to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Current prepaid expenses; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Adjustments for the increase (decrease) in contract liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Contract liabilities; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Adjustments for increase (decrease) in deposits from customers to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Deposits from customers; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20&doctype=Standard -URIDate 2022-03-24 + Details
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