SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Net Revenue	$ 477,690	$ 484,604
Customer Advances [Member]
Net Revenue	3,700
Unearned Income [Member]
Net Revenue	5,700
Radio advertising
Net Revenue	182,362	177,268
Political advertising
Net Revenue	3,881	13,226
Digital advertising
Net Revenue	74,866	76,730
Cable television advertising
Net Revenue	108,307	112,857
Cable television affiliate fees
Net Revenue	87,747	96,963
Event revenues & other
Net Revenue	20,527	7,560
Operating segment | Radio Broadcasting
Net Revenue	156,214	156,678
Operating segment | Radio Broadcasting | Radio advertising
Net Revenue	146,171	139,470
Operating segment | Radio Broadcasting | Political advertising
Net Revenue	2,854	11,143
Operating segment | Radio Broadcasting | Event revenues & other
Net Revenue	7,189	6,065
Operating segment | Reach Media Segment
Net Revenue	52,888	43,117
Operating segment | Reach Media Segment | Radio advertising
Net Revenue	39,851	41,414
Operating segment | Reach Media Segment | Political advertising
Net Revenue	398	287
Operating segment | Reach Media Segment | Event revenues & other
Net Revenue	12,639	1,416
Operating segment | Digital Segment
Net Revenue	75,495	78,526
Operating segment | Digital Segment | Political advertising
Net Revenue	629	1,796
Operating segment | Digital Segment | Digital advertising
Net Revenue	74,866	76,730
Operating segment | Cable Television Segment
Net Revenue	196,207	209,871
Operating segment | Cable Television Segment | Cable television advertising
Net Revenue	108,307	112,857
Operating segment | Cable Television Segment | Cable television affiliate fees
Net Revenue	87,747	96,963
Operating segment | Cable Television Segment | Event revenues & other
Net Revenue	153	51
Eliminations
Net Revenue	(3,114)	(3,588)
Eliminations | Radio advertising
Net Revenue	(3,660)	(3,616)
Eliminations | Event revenues & other
Net Revenue	$ 546	$ 28