CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT) AND NONCONTROLLING INTEREST - USD ($) $ in Thousands	Total	Common Class A [Member]	Common Class B [Member]	Common Class C [Member]	Common Class D [Member]	Convertible Preferred Stock [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Noncontrolling Interest [Member]
BALANCE at Dec. 31, 2013	$ 284,975	$ 3	$ 3	$ 3	$ 39	$ 0	$ (213)	$ 1,003,116	$ (925,002)	$ 207,026
Consolidated net loss	(43,379)	0	0	0	0	0	0	0	(62,670)	19,291
Net change in unrealized gain on investment activities, net of taxes	98	0	0	0	0	0	98	0	0	0
Stock-based compensation expense	1,594	0	0	0	2	0	0	1,592	0	0
Conversion of 324,482 shares of Class A common stock to Class D common stock	0	(1)	0	0	1	0	0	0	0	0
Conversion of 192,142 shares of Class C common stock to Class D common stock	0	0	0	0	0	0	0	0	0	0
Adjustment of redeemable noncontrolling interests to estimated redemption value	1,802	0	0	0	0	0	0	1,802	0	0
Exercise of options for 92,040 shares of common stock	125	0	0	0	0	0	0	125	0	0
Dividends paid to noncontrolling interest	(24,643)	0	0	0	0	0	0	0	0	(24,643)
BALANCE at Dec. 31, 2014	220,572	2	3	3	42	0	(115)	1,006,635	(987,672)	201,674
Consolidated net loss	(67,873)	0	0	0	0	0	0	0	(74,022)	6,149
Net change in unrealized gain on investment activities, net of taxes	115	0	0	0	0	0	115	0	0	0
Stock-based compensation expense	5,107	0	0	0	0	0	0	5,107	0	0
Conversion of 145,902 shares of Class A common stock to Class D common stock	0	0	0	0	0	0	0	0	0	0
Acquisition of additional membership interest in TV One	(221,727)	0	0	0	0	0	0	(25,760)	5,973	(201,940)
Repurchase of 345,293 shares of Class D common stock	(1,423)	0	0	0	0	0	0	(1,423)	0	0
Adjustment of redeemable noncontrolling interests to estimated redemption value	(712)	0	0	0	0	0	0	(712)	0	0
Dividends paid to noncontrolling interest	(5,883)	0	0	0	0	0	0	0	0	(5,883)
BALANCE at Dec. 31, 2015	(71,824)	2	3	3	42	0	0	983,847	(1,055,721)	0
Consolidated net loss	(423)	0	0	0	0	0	0	0	(423)	0
Net change in unrealized gain on investment activities, net of taxes	0
Tax impact of increased ownership of TV One	3,281	0	0	0	0	0	0	0	3,281	0
Stock-based compensation expense	3,410	0	0	0	0	0	0	3,410	0	0
Conversion of 410,808 shares of Class A common stock to Class D common stock	0	0	0	0	0	0	0	0	0	0
Repurchase of 1,585,703 shares of Class D common stock	(3,584)	0	0	0	(1)	0	0	(3,583)	0	0
Adjustment of redeemable noncontrolling interests to estimated redemption value	(1,986)	0	0	0	0	0	0	(1,986)	0	0
BALANCE at Dec. 31, 2016	$ (71,126)	$ 2	$ 3	$ 3	$ 41	$ 0	$ 0	$ 981,688	$ (1,052,863)	$ 0