Operating Segments - Summary of Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Net revenue:
Net revenue	$ 36,275	$ 37,355
Engineering and programming expenses:
Engineering and programming expenses	7,674	7,031
Selling, general and administrative expenses:
Selling, general and administrative expenses	18,241	19,254
Corporate expenses	2,824	2,751
Depreciation and amortization:
Depreciation and amortization	846	873
Gain on disposal of assets, net of disposal costs:
Gain on disposal of assets, net of disposal costs	(3,186)	(36)
Recapitalization costs:
Recapitalization costs	1,684	1,930
Impairment charges:
Impairment charges	14,103
Other operating income:
Other operating income		(17)
Operating (loss) income:
Operating (loss) income	(5,911)	5,569
Capital expenditures:
Capital expenditures	869	1,173
Assets
Total Assets	453,361		$ 469,044
Operating Segments | Radio
Net revenue:
Net revenue	32,533	34,079
Engineering and programming expenses:
Engineering and programming expenses	5,608	5,481
Selling, general and administrative expenses:
Selling, general and administrative expenses	16,668	17,666
Depreciation and amortization:
Depreciation and amortization	440	376
Gain on disposal of assets, net of disposal costs:
Gain on disposal of assets, net of disposal costs	(8)	(36)
Impairment charges:
Impairment charges	14,103
Other operating income:
Other operating income		(17)
Operating (loss) income:
Operating (loss) income	(4,278)	10,609
Capital expenditures:
Capital expenditures	563	610
Assets
Total Assets	405,220		407,633
Operating Segments | Television
Net revenue:
Net revenue	3,742	3,276
Engineering and programming expenses:
Engineering and programming expenses	2,066	1,550
Selling, general and administrative expenses:
Selling, general and administrative expenses	1,573	1,588
Depreciation and amortization:
Depreciation and amortization	349	444
Gain on disposal of assets, net of disposal costs:
Gain on disposal of assets, net of disposal costs	(3,178)
Operating (loss) income:
Operating (loss) income	2,932	(306)
Capital expenditures:
Capital expenditures	173	405
Assets
Total Assets	45,026		58,465
Corporate, Non-Segment
Selling, general and administrative expenses:
Corporate expenses	2,824	2,751
Depreciation and amortization:
Depreciation and amortization	57	53
Recapitalization costs:
Recapitalization costs	1,684	1,930
Operating (loss) income:
Operating (loss) income	(4,565)	(4,734)
Capital expenditures:
Capital expenditures	133	$ 158
Assets
Total Assets	$ 3,115		$ 2,946