ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended													12 Months Ended
	Dec. 31, 2018	[1]	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	[1]	Dec. 31, 2017	[2]	Sep. 30, 2017	[2]	Jun. 30, 2017	[2]	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net Revenue	$ 113,541		$ 110,730	$ 115,206	$ 99,621		$ 109,036		$ 112,078		$ 117,638		$ 101,289	$ 439,098	$ 440,041
Radio Advertising [Member]
Net Revenue														198,854	200,417
Political Advertising [Member]
Net Revenue														6,590	2,052
Digital Advertising [Member]
Net Revenue														31,510	30,735
Cable Television Advertising [Member]
Net Revenue														76,429	79,422
Cable Television Affiliate Fees [Member]
Net Revenue														107,277	106,310
Event Revenues & Other [Member]
Net Revenue														$ 18,438	$ 21,105

[1] The net (loss) income from continuing operations for the quarters ended March 31, 2018 and December 31, 2018, includes approximately $6.6 million and $14.7 million, respectively of impairment charges. The net income for the quarter ended December 31, 2018 includes a benefit from income taxes of approximately $127.8 million.

[2] The net income (loss) from continuing operations for the quarters ended June 30, 2017 and September 30, 2017, includes approximately $12.7 million and $16.4 million, respectively of impairment charges. The net income from continuing operations for the quarter ended June 30, 2017 includes approximately $14.4 million of gain on sale-leaseback. The net income for the quarter ended December 31, 2017 includes a benefit from income taxes of approximately $117.2 million.