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License Agreement and Clinical Research Organization - Additional Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Apr. 10, 2020 | Apr. 30, 2026 | Apr. 30, 2025 | Apr. 30, 2026 | Apr. 30, 2025
License Agreement and Clinical Research Organization [Line Items] |  |  |  |  |
Annual maintenance fee | $ 50 |  |  |  |
Payment to NTC upon assigning the License Agreement | 50 |  |  |  |
Phase I Clinical Trial [Member] |  |  |  |  |
License Agreement and Clinical Research Organization [Line Items] |  |  |  |  |
One-time payment for milestone product | 50 |  |  |  |
Phase II Clinical Trial [Member] |  |  |  |  |
License Agreement and Clinical Research Organization [Line Items] |  |  |  |  |
One-time payment for milestone product | 450 |  |  |  |
Research and Development |  |  |  |  |
License Agreement and Clinical Research Organization [Line Items] |  |  |  |  |
Upfront fee | $ 50 |  |  |  |
Fee related to the manufacturing payment |  |  |  | $ 0 |
Expenses related to the annual maintenance fee |  | $ 13 | $ 25 | $ 13 | $ 25

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- Definition Cost of maintenance incurred and directly related to good produced and service rendered. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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