Summary of Significant Accounting Policies (Details)	3 Months Ended
	Mar. 31, 2026 USD ($) segment item	Dec. 31, 2025 USD ($)
Summary of Significant Accounting Policies
Number of FM radio stations	82
Number of AM radio stations	30
Number of metro signals	79
Number of market serving	28
Securities at amortized cost | $	$ 9,400,000	$ 9,300,000
Securities at fair value | $	$ 9,400,000	9,300,000
Number of Radio Markets	28
Number of operating segments | segment	1
Number of reportable segments | segment	1
Assets held for sale | $	$ 872,000	$ 0
Customer relationships
Summary of Significant Accounting Policies
Useful life	3 years