ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net Revenue	$ 112,349	$ 91,440
Radio Advertising [Member]
Net Revenue	39,127	33,340
Political Advertising [Member]
Net Revenue	532	780
Digital Advertising [Member]
Net Revenue	15,482	10,353
Cable Television Advertising [Member]
Net Revenue	30,414	20,702
Cable Television Affiliate Fees [Member]
Net Revenue	25,970	25,486
Event Revenues & Other [Member]
Net Revenue	$ 824	$ 779