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Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 31, 2022 | Oct. 31, 2021
Research and Development Expense [Member] |  |
Share-based payment arrangement, expense | $ 3,635 | $ 4,166
General and Administrative Expense [Member] |  |
Share-based payment arrangement, expense | $ 3,020 | $ 3,892

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