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Note 13 - Related Party Transactions (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 31, 2023 | Aug. 31, 2022 | Aug. 31, 2023 | Aug. 31, 2022 | Nov. 30, 2022
Revenue from Contract with Customer, Including Assessed Tax | $ 8,117,000 | $ 7,476,000 | $ 23,429,000 | $ 19,031,000 |
Accrued Liabilities, Current | 1,141,578 |  | 1,141,578 |  | $ 1,161,761
Related Party [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 0 | 0 | 0 | 0 |
Accounts Receivable, after Allowance for Credit Loss | 0 | 0 | 0 | 0 |
Costs and Expenses | 4,068 | 4,209 | 12,131 | 19,762 |
Accrued Liabilities, Current | $ 1,357 | $ 1,408 | $ 1,357 | $ 1,408 |

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