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Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jan. 01, 2026 | Jun. 10, 2025 | May 15, 2024 | Apr. 30, 2026 | Apr. 30, 2025 | Apr. 30, 2026 | Apr. 30, 2025 | Oct. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Unrecognized compensation expense |  |  |  | $ 45.2 |  | $ 45.2 |  |
Common stock shares reserved for future issuance |  |  |  | 28,486,087 |  | 28,486,087 |  | 22,478,570
Common stock no par value |  |  |  | $ 0 |  | $ 0 |  | $ 0
Shares Granted |  |  |  |  |  | 3,161,490 |  |
Unrecognized compensation expense weighted-average period of recognition |  |  |  |  |  | 3 years 1 month 6 days |  |
Weighted-average grant-date fair value per share of share options granted |  |  |  | $ 0 | $ 3.23 | $ 9.53 | $ 5.23 |
2025 Employee Stock Purchase Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock shares reserved for future issuance |  | 2,000,000 |  |  |  |  |  |
Common stock capital shares reserved for remaining future issuance |  |  |  |  |  | 2,000,000 |  |
Common stock no par value |  | $ 0 |  |  |  |  |  |
Shares issued |  |  |  |  |  | 0 |  |
Percentage of common stock value on date of grant |  | 85.00% |  |  |  |  |  |
Evergreen Provision |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Aggregate number of common shares outstanding percentage | 5.00% |  |  |  |  |  |  |
Restricted share units |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Stock options vesting service period |  |  |  |  |  | 4 years |  |
2023 Plan | Evergreen Provision |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock shares reserved for future issuance |  |  |  | 11,882,624 |  | 11,882,624 |  |
Common stock capital shares reserved for remaining future issuance |  |  |  |  |  | 2,916,016 |  |
Aggregate number of common shares outstanding percentage |  |  | 5.00% |  |  |  |  |
Issuance of common shares |  |  | 2,500,000 |  |  |  |  |
Number of shares authorized increased |  |  |  | 3,349,283 |  | 3,349,283 |  |
2023 Plan | Employee Stock Option [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of common stock value on date of grant |  |  | 100.00% |  |  |  |  |
Inducement Grants | Nonqualified Stock Options |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares Granted |  |  |  | 0 |  | 0 |  |
Stock options granted |  |  |  | 3,352,550 |  | 3,352,550 |  |
Shares vested |  |  |  | 855,794 |  | 855,794 |  |
Shares forfeited |  |  |  | 37,200 |  | 37,200 |  |
Stock option expired |  |  |  | 0 |  | 0 |  |

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