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Note 10 - Income Taxes (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2022 | Jul. 31, 2021 | Oct. 31, 2021
Income Tax Expense (Benefit), Total | $ 140,000 | $ 272,000 | $ 196,000 | $ 727,000 |
Effective Income Tax Rate Reconciliation, Percent, Total | 15.40% | 15.20% | 16.40% | 22.10% |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total | $ 211,000 |  | $ 211,000 |  | $ 141,000
Unrecognized Tax Benefits, Ending Balance | $ 206,000 |  | $ 206,000 |  |

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