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Share-Based Compensation (Tables) | 6 Months Ended
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Apr. 30, 2026
Share-Based Payment Arrangement [Abstract] |
Schedule of Shares Reserved for Future Issuance Under the Plan | As of April 30, 2026, and October 31, 2025, the Company has reserved the following Common Shares for the exercise of Common Share warrants, share options, restricted share units, and remaining shares reserved for future issuance under the 2023 Plan and options granted outside of the 2023 Plan as part of the inducement grants:
|  | April 30, |  |  | October 31, |
|  | 2026 |  |  | 2025 |
Warrants to purchase common shares |  |  | 8,552,818 |  |  |  | 8,511,968 |
Incentive options to purchase common shares awarded pursuant to the 2023 Plan |  |  | 8,700,583 |  |  |  | 5,717,948 |
Inducement grant stock options awarded outside of the 2023 Plan |  |  | 3,315,350 |  |  |  | 3,315,350 |
Restricted share units awarded pursuant to the 2023 Plan |  |  | 266,025 |  |  |  | — |
Pre-funded warrants to purchase common shares |  |  | 2,735,295 |  |  |  | — |
Remaining shares reserved for future issuance under the 2023 Plan |  |  | 2,916,016 |  |  |  | 2,933,304 |
Remaining shares reserved for future issuance under ESSP |  |  | 2,000,000 |  |  |  | 2,000,000 |
Total |  |  | 28,486,087 |  |  |  | 22,478,570 |
Schedule of Assumptions Used to Determine Grant-Date Fair Value of Stock Options | The assumptions that the Company used to determine the grant-date fair value of stock options during the three and six months ended April 30, 2026 and 2025 are summarized below:
| Three months ended April 30, |  |  | Six months ended April 30, |  |
| 2026 |  |  | 2025 |  |  | 2026 |  |  | 2025 |  |
Expected term (in years) |  |  | — |  |  | 6.08 |  |  |  | 6.03-6.08 |  |  | 6.02-6.08 |  |
Expected volatility |  |  | — |  |  | 82.39% |  |  |  | 82.39-82.48% |  |  | 81.24-82.39% |  |
Risk-free interest rate |  |  | — |  |  | 4.01% |  |  |  | 3.9-3.91% |  |  | 4.01-4.49% |  |
Expected dividend yield |  |  | — |  |  |  | — |  |  |  |  | — |  |  |  | — |  |
Fair value of common shares and exercise price of options (USD) | $ |  | — |  | $ | 4.44 |  |  | $ | 9.53 |  | $ | 4.44-7.39 |  |
Summary of Stock Option Activity | The following table summarizes the Company’s stock option activity:
|  | Number of Shares |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value |
Outstanding as of October 31, 2025 |  |  | 9,033,298 |  |  | $ | 6.93 |  |  |  | 8.5 |  |  | $ | 10,979 |
Granted |  |  | 3,161,490 |  |  |  | 9.53 |  |  |  |  |  |  |
Exercised |  |  | (117,868 | ) |  |  | 2.38 |  |  |  |  |  |  |
Forfeited or expired |  |  | (60,987 | ) |  |  | 8.14 |  |  |  |  |  |  |
Outstanding as of April 30, 2026 |  |  | 12,015,933 |  |  | $ | 7.63 |  |  |  | 8.5 |  |  | $ | 10,865 |
Options vested and exercisable as of April 30, 2026 |  |  | 3,929,761 |  |  | $ | 6.77 |  |  |  | 7.1 |  |  | $ | 6,561 |
Options unvested as of April 30, 2026 |  |  | 8,086,172 |  |  | $ | 8.04 |  |  |  | 9.1 |  |  | $ | 4,304 |
Summary of Restricted Share Unit Activity | The following table summarizes the restricted share unit activity under the 2023 Plan:
|  | Number of Shares |  |  | Weighted- Average Grate Date Fair Value |
Outstanding as of October 31, 2025 |  |  | — |  |  | $ | — |
Granted |  |  | 272,925 |  |  |  | 9.53 |
Vested |  |  | — |  |  |  | — |
Forfeited or expired |  |  | (6,900 | ) |  |  | 9.53 |
Outstanding as of April 30, 2026 |  |  | 266,025 |  |  | $ | 9.53 |
Summary of Share-based Compensation Expense | Share-based compensation expense included in the Company’s consolidated statements of operations and comprehensive loss was as follows:
|  | Three Months Ended April 30, |  |  | Six Months Ended April 30, |
|  | 2026 |  |  | 2025 |  |  | 2026 |  |  | 2025 |
Research and development |  | $ | 1,627 |  |  | $ | 888 |  |  | $ | 2,631 |  |  | $ | 1,513 |
General and administrative |  |  | 2,518 |  |  |  | 1,762 |  |  |  | 4,317 |  |  |  | 2,946 |
Total share-based compensation expense |  | $ | 4,145 |  |  | $ | 2,650 |  |  | $ | 6,948 |  |  | $ | 4,459 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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