ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Apr. 18, 2017	Nov. 30, 2016	Apr. 10, 2015
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Cost of Goods and Services Sold, Total	$ 34,892,000	$ 32,093,000	$ 99,798,000	$ 96,789,000
Selling, General and Administrative Expense, Total	36,851,000	35,855,000	114,280,000	114,541,000
Payment of launch support	0		1,800,000	0
Related Party Transaction, Due from (to) Related Party, Total	973,000		$ 973,000		$ 426,000
Related Party Transaction, Terms and Manner of Settlement			The fee is up to the first $1.0 million after the Fantastic Voyage nets $250,000 to the Foundation. The balance of any operating income is earned by the Foundation less a performance bonus of 50% to Reach Media of any excess over $1.25 million.
Revenues	112,078,000	110,856,000	$ 331,005,000	342,663,000
Operating Expenses, Total	108,547,000	86,323,000	298,913,000	271,603,000
Operating Income (Loss)	3,531,000	24,533,000	32,092,000	71,060,000
Credit Facility 2017 [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Long-term Debt, Gross	348,300,000		348,300,000				$ 350,000,000
Debt Instrument, Fair Value Disclosure	341,300,000		341,300,000
Accounting Standards Update 2015-03 [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Debt Related Commitment Fees and Debt Issuance Costs						$ 7,400,000
Accounting Standards Update 2015-15 [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Debt Related Commitment Fees and Debt Issuance Costs					421,000
Comcast Note [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Long-term Debt, Gross	11,900,000		11,900,000		11,900,000
Debt Instrument, Fair Value Disclosure	$ 11,900,000		$ 11,900,000		$ 11,900,000
Debt Instrument, Interest Rate, Stated Percentage	10.47%		10.47%
Debt Instrument, Face Amount	$ 11,900,000		$ 11,900,000
MGM National Harbor [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Investment Owned, at Cost								$ 35,000,000	$ 5,000,000
Employment Agreement Award [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Selling, General and Administrative Expense, Total	1,400,000	1,000,000	3,900,000	5,800,000
Barter Transactions [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Advertising Barter Transactions, Advertising Barter Revenue	574,000	491,000	1,600,000	1,600,000
Cost of Goods and Services Sold, Total	534,000	450,000	1,500,000	1,500,000
Selling, General and Administrative Expense, Total	40,000	41,000	121,000	122,000
Radio broadcasting and Reach Media segments [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Sales Commissions and Fees	6,100,000	6,400,000	$ 18,200,000	19,000,000
Maximum [Member] | MGM National Harbor [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Investment Owned, at Cost									$ 40,000,000
Launch Support Assets [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Finite Lived Intangible Assets Weighted Average Amortization Period			9 years 6 months		9 years 4 months 24 days
Finite Lived Intangible Assets Remaining Weighted Average Amortization Period			7 years 3 months 18 days		8 years
Amortization of Intangible Assets	108,000	20,000	$ 324,000	61,000
Content Assets [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Amortization of Intangible Assets	0	0	0	1,900,000
Columbus and Houston Radio Broadcasting Licenses [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 16,400,000		$ 29,100,000
Chief Executive Officer [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Percentage Of Award Amount	4.00%		4.00%
Reassessed Estimated Fair Value of Award	$ 29,200,000		$ 29,200,000		$ 27,000,000
Tom Joyner Foundation Inc [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Related Party Transaction, Due from (to) Related Party, Total	14,000		14,000		3,000
Tom Joyner Limited [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Related Party Transaction, Due from (to) Related Party, Total	2,000		2,000		11,000
Senior Subordinated Notes due February 2020 [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Long-term Debt, Gross	295,000,000		295,000,000		315,000,000
Debt Instrument, Fair Value Disclosure	$ 278,800,000		$ 278,800,000		283,500,000
Debt Instrument, Interest Rate, Stated Percentage	9.25%		9.25%
Senior Subordinated Notes due March 2022 [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Long-term Debt, Gross	$ 350,000,000		$ 350,000,000		350,000,000
Debt Instrument, Fair Value Disclosure	$ 348,300,000		$ 348,300,000		344,800,000
Debt Instrument, Interest Rate, Stated Percentage	7.375%		7.375%
Senior Secured Credit Facility [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Long-term Debt, Gross	$ 350,000,000		$ 350,000,000		344,800,000
Long-term Debt, Fair Value					$ 346,500,000
Tv One Llc [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Sales Commissions and Fees	$ 3,200,000	$ 3,800,000	$ 10,800,000	11,800,000
Reach Media Inc [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	80.00%		80.00%
Reach Media Inc [Member] | Fantastic Voyage [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Revenues			$ 9,100,000	8,800,000
Operating Expenses, Total			7,400,000	7,800,000
Operating Income (Loss)			1,700,000	$ 1,000,000
Reach Media Inc [Member] | Maximum [Member] | Fantastic Voyage [Member]
ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES [Line Items]
Operating Income (Loss)			$ 1,700,000