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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Broadcast Licenses, Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended			12 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Broadcast Licenses, Goodwill and Other Intangible Assets
Impairment of broadcast licenses	$ 1,392,000	$ 3,757,000	$ 0		$ 5,149,000
Amortization Expense				$ 387,000	$ 813,000	$ 1,029,000
2022				39,000
2023				35,000
2024				33,000
2025				33,000
2026				$ 32,000