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Note 9 - Employee Benefits (Details Textual) - USD ($) |  | 12 Months Ended
--- | --- | ---
Mar. 29, 2022 | Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2020
Health Insurance Coverage Expense |  | $ 3,021,642 | $ 2,697,167 | $ 3,165,736
Defined Contribution Plan, Employer Discretionary Contribution Amount |  | 62,517 | 65,416 | 66,804
Share-Based Payment Arrangement, Expense |  | $ 411,997 | 335,519 | 142,242
Services and Performance Based Shares [Member] |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  | 3 years 1 month 6 days |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total |  | $ 1,000,000.0 |  |
The 2017 Stock Incentive Plan [Member] |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized | 350,000 |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant |  | 356,000 |  |
The 2017 Stock Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |
Share-Based Payment Arrangement, Expense |  | $ 143,691 | $ 108,801 | $ 131,162
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period |  | 1 year |  |
The 2017 Stock Incentive Plan [Member] | Restricted Stock [Member] | Non-employee Directors [Member] |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross |  | 27,364 | 30,055 | 58,880

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