The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Broadcast Licenses, Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Broadcast Licenses, Goodwill and Other Intangible Assets
Impairment of intangible assets	$ 1,400,000	$ 3,800,000			$ 5,149,000
Amortization Expense			$ 48,000	$ 387,000	$ 813,000
2023			71,000
2024			69,000
2025			66,000
2026			65,000
2027			$ 60,000