Operating Segments - Summary of Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Net revenue:
Net revenue	$ 35,635	$ 36,381	$ 102,508	$ 106,623
Engineering and programming expenses:
Engineering and programming expenses	7,836	7,493	23,584	23,097
Selling, general and administrative expenses:
Selling, general and administrative expenses	14,211	15,315	42,644	46,918
Corporate expenses	2,505	2,870	8,047	7,442
Depreciation and amortization:
Depreciation and amortization	1,133	1,152	3,548	3,622
(Gain) loss on the disposal of assets, net:
(Gain) loss on the disposal of assets, net		1	(3)	(77)
Impairment charges and restructuring costs:
Impairment charges and restructuring costs		735	(26)	598
Operating income (loss):
Operating income (loss)	9,950	8,815	24,714	25,023
Capital expenditures:
Capital expenditures	378	660	2,130	1,384
Assets
Total Assets	451,714		451,714		$ 447,209
Operating Segments | Radio
Net revenue:
Net revenue	32,055	33,476	92,009	97,195
Engineering and programming expenses:
Engineering and programming expenses	5,853	5,551	17,997	17,113
Selling, general and administrative expenses:
Selling, general and administrative expenses	12,712	13,583	37,515	42,716
Depreciation and amortization:
Depreciation and amortization	457	432	1,420	1,363
(Gain) loss on the disposal of assets, net:
(Gain) loss on the disposal of assets, net			(3)	(68)
Impairment charges and restructuring costs:
Impairment charges and restructuring costs		925		925
Operating income (loss):
Operating income (loss)	13,033	12,985	35,080	35,146
Capital expenditures:
Capital expenditures	92	248	1,371	698
Assets
Total Assets	392,603		392,603		392,926
Operating Segments | Television
Net revenue:
Net revenue	3,580	2,905	10,499	9,428
Engineering and programming expenses:
Engineering and programming expenses	1,983	1,942	5,587	5,984
Selling, general and administrative expenses:
Selling, general and administrative expenses	1,499	1,732	5,129	4,202
Depreciation and amortization:
Depreciation and amortization	568	630	1,815	1,977
(Gain) loss on the disposal of assets, net:
(Gain) loss on the disposal of assets, net		1		2
Operating income (loss):
Operating income (loss)	(470)	(1,400)	(2,032)	(2,737)
Capital expenditures:
Capital expenditures	204	295	513	477
Assets
Total Assets	56,338		56,338		51,388
Corporate, Non-Segment
Selling, general and administrative expenses:
Corporate expenses	2,505	2,870	8,047	7,442
Depreciation and amortization:
Depreciation and amortization	108	90	313	282
(Gain) loss on the disposal of assets, net:
(Gain) loss on the disposal of assets, net				(11)
Impairment charges and restructuring costs:
Impairment charges and restructuring costs		(190)	(26)	(327)
Operating income (loss):
Operating income (loss)	(2,613)	(2,770)	(8,334)	(7,386)
Capital expenditures:
Capital expenditures	82	$ 117	246	$ 209
Assets
Total Assets	$ 2,773		$ 2,773		$ 2,895