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Note 9 - Employee Benefits (Details Textual) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018
Health Insurance Coverage Expense |  | $ 3,165,736 | $ 3,549,189 | $ 3,479,447
Defined Contribution Plan, Employer Discretionary Contribution Amount |  | 66,804 | 68,467 | 68,502
Share-based Payment Arrangement, Expense |  | $ 142,242 | $ 980,549 | 2,224,620
Restricted Stock [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  | 0 | 0 |
Services and Performance Based Shares [Member] |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  | 1 year 9 months 18 days |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total |  | $ 394,000 |  |
The 2017 Stock Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares) | 500,000 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) |  | 362,000 |  |
The 2017 Stock Incentive Plan [Member] | Restricted Stock [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) |  | 83,880 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  | 1 year |  |
Deferred Compensation Arrangement with Individual, Allocated Share-based Compensation Expense |  | $ 131,162 | $ 124,838 | $ 96,407
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 (in shares) |  | 58,880 | 30,360 | 35,810
The 2017 Stock Incentive Plan [Member] | Restricted Stock [Member] | Consultant [Member] |  |  |  |
Share-based Payment Arrangement, Expense |  | $ 15,266 | $ 11,918 | $ 10,696
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) |  | 25,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  | 5 years |  |

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