SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
SEGMENT INFORMATION
Net Revenue:	$ 105,854	$ 111,055	$ 121,571	$ 98,449	$ 113,541	$ 110,730	$ 115,206	$ 99,621	$ 436,929	$ 439,098
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									322,248	311,013
Depreciation and Amortization:									16,985	33,189
Impairment of Long-Lived Assets:									10,600	21,256
Operating income (loss):	12,062	$ 31,117	$ 29,121	$ 14,796	9,411	$ 32,101	$ 24,813	$ 7,315	87,096	73,640
Capital expenditures by segment are as follows:									5,145	7,186
Total Assets:	1,249,919				1,237,409				1,249,919	1,237,409
Radio Broadcasting
SEGMENT INFORMATION
Net Revenue:									177,478	182,765
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									119,878	117,427
Depreciation and Amortization:									3,248	3,484
Impairment of Long-Lived Assets:									4,800	21,256
Operating income (loss):									49,552	40,598
Capital expenditures by segment are as follows:									2,778	3,876
Total Assets:	721,295				717,400				721,295	717,400
Radio Broadcasting | Intersegment Eliminations [Member]
SEGMENT INFORMATION
Net Revenue:									(2,189)	(2,526)
Reach Media
SEGMENT INFORMATION
Net Revenue:									44,691	42,984
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									38,150	36,064
Depreciation and Amortization:									235	250
Impairment of Long-Lived Assets:									0	0
Operating income (loss):									6,306	6,670
Capital expenditures by segment are as follows:									179	114
Total Assets:	41,892				34,388				41,892	34,388
Digital
SEGMENT INFORMATION
Net Revenue:									31,922	31,577
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									31,775	37,617
Depreciation and Amortization:									1,877	1,907
Impairment of Long-Lived Assets:									5,800	0
Operating income (loss):									(7,530)	(7,947)
Capital expenditures by segment are as follows:									1,390	1,197
Total Assets:	22,223				24,389				22,223	24,389
Cable Television
SEGMENT INFORMATION
Net Revenue:									185,027	184,298
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									103,195	99,104
Depreciation and Amortization:									10,376	26,259
Impairment of Long-Lived Assets:									0	0
Operating income (loss):									71,456	58,935
Capital expenditures by segment are as follows:									207	570
Total Assets:	388,465				402,511				388,465	402,511
Corporate/Eliminations
SEGMENT INFORMATION
Net Revenue:									(2,189)	(2,526)
Operating Expenses (including stock-based compensation and excluding depreciation and amortization and impairment of long-lived assets):									29,250	20,801
Depreciation and Amortization:									1,249	1,289
Impairment of Long-Lived Assets:									0	0
Operating income (loss):									(32,688)	(24,616)
Capital expenditures by segment are as follows:									591	1,429
Total Assets:	$ 76,044				$ 58,721				$ 76,044	$ 58,721