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Basis of Presentation and Significant Accounting Policies - Costs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022
Significant Accounting Policies |  |  |
Advertising costs | $ 0.3 | $ 0.4 | $ 0.6
Research and development costs | 0.1 | 0.1 | 0.1
Consulting fees |  | 2.8 |
Employee costs | $ 1.0 | $ 5.5 | 2.0
Dividend income |  |  | $ 0.8

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