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Disposition - Summary of Assets Held for Sale (Detail) - USD ($)	Sep. 30, 2025	Sep. 29, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	$ 6,183,987
Tampa, FL [Member] | Discontinued Operations, Held-for-Sale [Member] | WPBB-FM [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Property and equipment, net	992,287
FCC licenses	5,191,700
Assets held for sale	$ 6,183,987	$ 8,000,000

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