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Dispositions - Additional Information (Detail) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 | Dec. 31, 2025 | Dec. 31, 2024 | Sep. 29, 2025 | Aug. 11, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Assets held for sale |  | $ 7,423,633 | $ 0 |  |
Gain on dispositions |  | 2,116,709 | $ 799,377 |  |
WRXK-FM and WXKB-FM [Member] | Tampa, FL [Member] | Discontinued Operations, Held-for-Sale [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Assets held for sale |  |  |  |  | $ 9,000,000
WBCN-AM, WJPT-FM and WWCN-FM [Member] | Tampa, FL [Member] | Discontinued Operations, Held-for-Sale [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Assets held for sale |  |  |  |  | $ 9,000,000
WPBB-FM [Member] | Tampa, FL [Member] | Discontinued Operations, Held-for-Sale [Member] |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Assets held for sale |  | $ 7,423,633 |  | $ 8,000,000 |
Gain on dispositions | $ 400,000 |  |  |  |

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