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Note 8 - Income Tax Provision (Details Textual) - USD ($) | 12 Months Ended |
--- | --- | ---
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2020
Income Tax Expense (Benefit), Total | $ 139,000 | $ 1,036,000 |
Effective Income Tax Rate Reconciliation, Percent, Total | 9.20% | 14.40% |
Income taxes at federal statutory rate, percentage | 21.00% | 21.00% |
Unrecognized Tax Benefits, Ending Balance | $ 134,000 | $ 141,000 | $ 107,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total | 13,000 | 13,000 |
Domestic Tax Authority [Member] |  |  |
Unrecognized Tax Benefits, Ending Balance | $ 121,000 | $ 128,000 |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |  |
Open Tax Year | 2019 2020 2021 2022 |  |
State and Local Jurisdiction [Member] |  |  |
Open Tax Year | 2018 2019 2020 2021 |  |

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