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Segment Information - Summary of Reportable Segment Information (Detail) - USD ($)
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Segment Reporting Information [Line Items]      
Net revenue $ 48,912,465 $ 54,380,346  
Operating expenses 45,241,261 49,240,998  
Corporate expenses 4,019,462 4,407,832  
Depreciation and amortization 1,652,331 1,834,602  
Operating loss (2,000,589) (1,103,086)  
Capital expenditures 800,165 947,724  
Property and equipment, net 45,157,137   $ 47,000,978
FCC licenses 392,259,831   392,259,831
Other intangibles, net 2,025,283   2,082,098
Audio [Member]      
Segment Reporting Information [Line Items]      
Net revenue 38,153,370 43,428,127  
Operating expenses 36,394,976 38,432,912  
Depreciation and amortization 1,493,963 1,596,253  
Operating loss 264,431 3,398,962  
Capital expenditures 461,592 821,735  
Property and equipment, net 42,042,163   44,089,751
FCC licenses 392,259,831   392,259,831
Other intangibles, net 1,541,544   1,574,817
Digital [Member]      
Segment Reporting Information [Line Items]      
Net revenue 10,759,095 10,952,219  
Operating expenses 8,846,285 10,808,086  
Depreciation and amortization 31,488 52,439  
Operating loss 1,881,322 91,694  
Capital expenditures 1,713 0  
Property and equipment, net 56,987   63,220
Other intangibles, net 304,076   327,618
Corporate [Member]      
Segment Reporting Information [Line Items]      
Corporate expenses 4,019,462 4,407,832  
Depreciation and amortization 126,880 185,910  
Operating loss (4,146,342) (4,593,742)  
Capital expenditures 336,860 $ 125,989  
Property and equipment, net 3,057,987   2,848,007
Other intangibles, net $ 179,663   $ 179,663