CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income (loss)	$ (1,913,000)	$ 13,279,000	$ 13,690,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	6,524,000	6,945,000	6,786,000
Deferred income tax expense (benefit)	(545,000)	1,420,000	2,660,000
Impairment of intangible assets	5,149,000	0	0
Amortization of deferred costs	40,000	103,000	51,000
Compensation expense related to restricted stock awards	2,221,000	2,129,000	2,201,000
(Gain) loss on sale of assets	(1,247,000)	112,000	61,000
(Gain) on insurance claims	(233,000)	(16,000)	(23,000)
Barter (revenue) expense, net	(133,000)	(190,000)	107,000
Deferred and other compensation	463,000	(634,000)	62,000
Changes in assets and liabilities:
(Increase) decrease in receivables and prepaid expenses	3,016,000	(5,780,000)	(157,000)
Increase (decrease) in accounts payable, accrued expenses, and other liabilities	(1,254,000)	7,967,000	121,000
Total adjustments	14,001,000	12,056,000	11,869,000
Net cash provided by operating activities	12,088,000	25,335,000	25,559,000
Cash flows from investing activities:
Acquisition of property and equipment	(2,314,000)	(5,732,000)	(5,922,000)
Acquisition of broadcast properties	(190,000)	(763,000)	(9,289,000)
Proceeds from sale and disposal of assets	1,691,000	270,000	318,000
Proceeds from insurance claims	233,000
Other investing activities	(24,000)	(10,000)	17,000
Net cash used in investing activities	(604,000)	(6,235,000)	(14,876,000)
Cash flows from financing activities:
Cash dividends paid	(3,716,000)	(8,623,000)	(11,864,000)
Payments on long-term debt		(10,000,000)	(5,000,000)
Payments for debt issuance costs			(120,000)
Purchase of treasury shares	(449,000)	(1,172,000)	(2,000,000)
Net cash used in financing activities	(4,165,000)	(19,795,000)	(18,984,000)
Net increase (decrease) in cash and cash equivalents	7,319,000	(695,000)	(8,301,000)
Cash and cash equivalents, beginning of period	44,034,000	44,729,000	53,030,000
Cash and cash equivalents, end of period	$ 51,353,000	$ 44,034,000	$ 44,729,000