Financial risk management (Narrative) (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Oct. 31, 2025 |
Oct. 31, 2024 |
|
| Currency risk [Member] | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Sensitivity analysis, variance, percentage | 10.00% | 10.00% |
| Value at risk | $ 314,000 | $ 487,000 |
| Credit risk [Member] | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Value at risk | $ 250,148 | $ 125,705 |