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Note 6 - Fair Value Measurements (Details Textual) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Goodwill, Impairment Loss | $ 2,254,624 | $ 6,460,168 | $ 0
Impairment of Intangible Assets, Finite-Lived |  | 3,649,193 |
Gray Matters [Member] |  |  |
Goodwill, Impairment Loss |  | 6,460,168 |
Impairment of Intangible Assets, Finite-Lived |  | 3,649,193 |
Income Tax Expense (Benefit), Impairment of Intangible Assets, Finite-Lived |  | (910,147) |
Goodwill, Impairment Loss, Net of Tax |  | 4,205,544 |
Impairment of Right of Use Assets |  | 113,722 |
Income Tax Expense (Benefit), Impairment of Right of Use Assets |  | $ (16,116) |
Measurement Input, Discount Rate [Member] |  |  |
Reporting Unit, Measurement Input | 22.50% |  |
Measurement Input, Long-Term Revenue Growth Rate [Member] |  |  |
Reporting Unit, Measurement Input | 3.00% |  |

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