Income taxes (Schedule of detailed information about effective income tax expense (recovery) (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Oct. 31, 2025 |
Oct. 31, 2024 |
Oct. 31, 2023 |
|
| Major components of tax expense (income) [abstract] | |||
| Loss before income taxes | $ (668,749) | $ (3,062,798) | $ (2,691,670) |
| Statutory tax rate | 26.50% | 26.50% | 26.50% |
| Expected income tax recovery | $ (177,218) | $ (811,641) | $ (713,293) |
| Accretion expense and loss (gain) on convertible debentures and derivative liabilities | (285,390) | 224,771 | 283,688 |
| Stock-based compensation | 0 | 1,727 | 57,761 |
| Non-deductible (non-taxable) expenses and financing costs | 8,746 | 239,387 | (13,660) |
| Effect of changes in exchange rates | 61,744 | 30,403 | 74,714 |
| Other | 9,382 | 0 | 0 |
| Change in deferred tax assets not recognized | 382,736 | 315,353 | 310,790 |
| Total tax expense (income) | $ 0 | $ 0 | $ 0 |
| X | ||||||||||
- Definition The amount of profit (loss) for a period before deducting tax expense. [Refer: Profit (loss)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The applicable income tax rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that the entity does not separately disclose in the same statement or note. [Refer: Accounting profit; Applicable tax rate] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to expenses not deductible in determining taxable profit (tax loss). [Refer: Accounting profit] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The product of the accounting profit multiplied by the applicable tax rate(s). [Refer: Accounting profit; Applicable tax rate] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Represents amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to accretion expense and loss (gain) on convertible debentures and derivative liabilities. No definition available.
|
| X | ||||||||||
- Definition Tax effect of changes in deferred tax assets not recognized No definition available.
|
| X | ||||||||||
- Definition Effect of exchange rate on future tax assets carried forward from previous years No definition available.
|
| X | ||||||||||
- Definition The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to stock based compensation. No definition available.
|