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Property and Equipment - Summary of Property and Equipment (Detail) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 98,181,011 $ 91,019,909
Less accumulated depreciation and amortization (42,373,964) (41,176,743)
Property and equipment, net 55,807,047 49,843,166
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 13,342,547 13,342,547
Buildings and improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 39,350,594 31,716,052
Broadcast Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 32,663,190 33,053,234
Transportation Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 2,304,018 2,294,487
Estimated useful lives (years) 5 years  
Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 9,871,341 7,735,270
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 649,321 $ 2,878,319
Minimum [Member] | Buildings and improvements [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful lives (years) 15 years  
Minimum [Member] | Broadcast Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful lives (years) 5 years  
Minimum [Member] | Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful lives (years) 5 years  
Maximum [Member] | Buildings and improvements [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful lives (years) 30 years  
Maximum [Member] | Broadcast Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful lives (years) 15 years  
Maximum [Member] | Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful lives (years) 10 years