SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)
SEGMENT INFORMATION
Number of reportable segments | segment									4
NET REVENUE	$ 130,966	$ 111,463	$ 107,593	$ 91,440	$ 113,542	$ 91,912	$ 76,008	$ 94,875	$ 441,462	$ 376,337
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									313,630	250,600
Depreciation and Amortization:									9,289	9,741
Impairment of Long-Lived Assets:									0	84,400
Operating income (loss):	22,391	$ 34,475	$ 37,920	$ 23,757	34,533	$ 3,968	$ 20,382	$ (27,287)	118,543	31,596
Capital expenditures by segment are as follows:									6,286	3,798
Total Assets:	1,261,108				1,195,487				1,261,108	1,195,487
Radio Broadcasting
SEGMENT INFORMATION
NET REVENUE									140,246	130,573
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									98,250	91,052
Depreciation and Amortization:									3,135	3,022
Impairment of Long-Lived Assets:										84,400
Operating income (loss):									38,861	(47,901)
Capital expenditures by segment are as follows:									2,826	2,200
Total Assets:	627,948				630,174				627,948	630,174
Radio Broadcasting | Intersegment Eliminations [Member]
SEGMENT INFORMATION
NET REVENUE									(3,338)	(2,414)
Reach Media
SEGMENT INFORMATION
NET REVENUE									46,437	30,996
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									32,911	22,376
Depreciation and Amortization:									208	237
Operating income (loss):									13,318	8,383
Capital expenditures by segment are as follows:									160	82
Total Assets:	33,451				38,235				33,451	38,235
Digital
SEGMENT INFORMATION
NET REVENUE									59,937	35,599
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									42,698	29,608
Depreciation and Amortization:									1,264	1,592
Operating income (loss):									15,975	4,399
Capital expenditures by segment are as follows:									1,354	799
Total Assets:	32,915				23,168				32,915	23,168
Cable Television
SEGMENT INFORMATION
NET REVENUE									198,180	181,583
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									103,049	81,546
Depreciation and Amortization:									3,738	3,749
Operating income (loss):									91,393	96,288
Capital expenditures by segment are as follows:									385	92
Total Assets:	367,896				374,046				367,896	374,046
Corporate/Eliminations
SEGMENT INFORMATION
NET REVENUE									(3,338)	(2,414)
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									36,722	26,018
Depreciation and Amortization:									944	1,141
Operating income (loss):									(41,004)	(29,573)
Capital expenditures by segment are as follows:									1,561	625
Corporate/Eliminations | Intersegment Eliminations [Member]
SEGMENT INFORMATION
Total Assets:	$ 198,898				$ 129,864				$ 198,898	$ 129,864