Condensed Consolidated Statements of Operations (Unaudited) (Parenthetical) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2026 |
Apr. 30, 2025 |
|
| Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||||
| Non-cash stock-based compensation expenses | $ 379 | $ 571 | $ 837 | $ 1,229 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Non-cash stock-based compensation expenses | $ 286 | $ 417 | $ 624 | $ 814 |