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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022
Operating Loss Carryforwards [Line Items] |  |  |
Income tax expense (benefit) | $ 25 | $ 581 | $ 819
Franchise tax expense | 500 | 900 | $ 1,000
Unrecognized Tax Benefits | 0 | 0 |
Unrecognized tax benefits, provision for interest or penalties | 0 | $ 0 |
Federal |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | 1,060,000 |  |
Net operating loss carryforwards subject to expiration | 549,000 |  |
Net operating loss carryforwards not subject to expiration | 506,000 |  |
NOL carryforward for financial statement purposes | 588,000 |  |
State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards subject to expiration | 585,100 |  |
Available tax credits | $ 13,700 |  |

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