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Consolidated Balance Sheets (Parentheticals) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2023
Intangible assets, accumulated amortization | $ 264,156 | $ 308,217 | $ 131,973 | $ 440,400
Goodwill, impairment loss | $ 2,254,624 | 6,460,168 | $ 0 |
Property and equipment, accumulated depreciation and amortization |  | $ 391,628 |  | $ 423,916
Common stock, par value (in dollars per share) |  | $ 0.001 | $ 0.001 | $ 0.001
Common stock, shares authorized (in shares) |  | 100,000,000 | 100,000,000 | 100,000,000
Common stock, shares issued (in shares) |  | 2,083,860 |  | 2,148,291
Common stock, shares outstanding (in shares) |  | 1,916,555 |  | 1,980,986
Treasury stock, shares (in shares) |  | 167,305 |  | 167,305
Before Reverse Stock Split [Member] |  |  |  |
Common stock, shares issued (in shares) |  | 20,838,599 | 18,882,313 |
Common stock, shares outstanding (in shares) |  | 19,165,548 | 17,239,697 |
Treasury stock, shares (in shares) |  | 1,673,051 | 1,642,616 |
Before Deconsolidation [Member] |  |  |  |
Intangible assets, accumulated amortization |  | $ 1,600,604 | $ 201,032 |
Intangible assets, impairment loss |  | 3,649,193 | 0 |
Goodwill, impairment loss |  | 6,460,168 | 0 |
Property and equipment, accumulated depreciation and amortization |  | $ 391,628 | $ 347,886 |

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