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Financial Instruments and Risk Management - Foreign currency risk (Details) € in Thousands, £ in Thousands, $ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Oct. 31, 2021 CAD ($) | Oct. 31, 2020 CAD ($) | Oct. 31, 2021 GBP (£) | Oct. 31, 2021 EUR (€) | Oct. 31, 2021 USD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Percentage of fixed interest rate borrowings | 84.00% | 100.00% | 84.00% | 84.00% | 84.00%
Accounts receivable | $ 6,494 | $ 2,673 |  |  |
Accounts payable and accrued liabilities | 18,532 | 6,421 |  |  |
Foreign currency risk | Currency in which supplementary information is displayed [member] |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Cash | 4,032 | 975 | £ 1,323 | € 139 | $ 2,570
Accounts receivable | 889 | 653 | 474 | 73 | 342
Accounts payable and accrued liabilities | (4,406) | (1,728) | (609) | (1,281) | (2,516)
Net monetary assets | $ 515 | (100) | £ 1,188 | € (1,069) | $ 396
United States dollars | Foreign currency risk | Currency in which supplementary information is displayed [member] |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Percentage of increase in exchange rate | 5.00% |  |  |  |
Percentage of decrease in exchange rate | 5.00% |  |  |  |
Increase in impact of carrying value of net monetary assets | $ 21 | 34 |  |  |
Decrease in impact of carrying value of net monetary assets | $ 21 |  |  |  |
Euro | Foreign currency risk | Currency in which supplementary information is displayed [member] |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Percentage of increase in exchange rate | (5.00%) |  |  |  |
Percentage of decrease in exchange rate | 5.00% |  |  |  |
Increase in impact of carrying value of net monetary assets | $ 29 | 39 |  |  |
Decrease in impact of carrying value of net monetary assets | $ 29 |  |  |  |
GBP | Foreign currency risk | Currency in which supplementary information is displayed [member] |  |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |  |
Percentage of increase in exchange rate | 5.00% |  |  |  |
Percentage of decrease in exchange rate | 5.00% |  |  |  |
Increase in impact of carrying value of net monetary assets | $ 37 | $ 0 |  |  |
Decrease in impact of carrying value of net monetary assets | $ 37 |  |  |  |

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