Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment reporting information
Net operating revenue	$ 35,606	$ 33,831	$ 34,358	$ 29,061	$ 36,371	$ 34,373	$ 33,831	$ 29,423		$ 132,856	$ 133,998	$ 129,478
Station operating expense	25,868	24,324	24,311	22,765	25,612	26,366	23,499	22,947		97,268	98,424	92,977
Corporate general and administrative	2,449	2,577	2,583	2,482	2,321	2,307	2,120	2,153		10,091	8,901	8,172
Other operating expense	94	433	14	0	(1,210)	0	0	0
Impairment of intangible assets	874	0	0	0	1,936	0	0	0	$ 2,033	874	1,936	2,033
Operating income (loss) from continuing operations	6,321	$ 6,497	$ 7,450	$ 3,814	7,712	$ 5,700	$ 8,212	$ 4,323		24,082	25,947	26,296
Capital additions										5,543	5,524	5,152
Broadcast licenses, net	88,106				86,762				$ 88,460	88,106	86,762	88,460
Total assets	204,571				192,044					204,571	192,044
Radio [Member]
Segment reporting information
Net operating revenue										111,792	113,627	109,818
Station operating expense										83,188	85,167	79,933
Corporate general and administrative										0	0	0
Other operating expense										499	(1,210)
Impairment of intangible assets										874	1,936	2,033
Operating income (loss) from continuing operations										27,231	27,734	27,852
Depreciation and amortization										5,135	5,023	5,119
Capital additions										3,436	3,856	3,884
Broadcast licenses, net	78,499				77,155					78,499	77,155
Total assets	150,855				142,068					150,855	142,068
Television [Member]
Segment reporting information
Net operating revenue										21,064	20,371	19,660
Station operating expense										14,080	13,257	13,044
Corporate general and administrative										0	0	0
Other operating expense										32	0
Impairment of intangible assets										0	0	0
Operating income (loss) from continuing operations										6,952	7,114	6,616
Depreciation and amortization										1,399	1,411	1,421
Capital additions										1,970	929	872
Broadcast licenses, net	9,607				9,607					9,607	9,607
Total assets	23,091				22,509					23,091	22,509
Corporate and Other [Member]
Segment reporting information
Net operating revenue										0	0	0
Station operating expense										0	0	0
Corporate general and administrative										10,091	8,901	8,172
Other operating expense										10	0
Impairment of intangible assets										0	0	0
Operating income (loss) from continuing operations										(10,101)	(8,901)	(8,172)
Depreciation and amortization										290	268	228
Capital additions										137	739	396
Broadcast licenses, net	0				0					0	0
Total assets	30,625				27,467					30,625	27,467
Consolidated Segments [Member]
Segment reporting information
Net operating revenue										132,856	133,998	129,478
Station operating expense										97,268	98,424	92,977
Corporate general and administrative										10,091	8,901	8,172
Other operating expense										541	(1,210)
Impairment of intangible assets										874	1,936	2,033
Operating income (loss) from continuing operations										24,082	25,947	26,296
Depreciation and amortization										6,824	6,702	6,768
Capital additions										5,543	5,524	$ 5,152
Broadcast licenses, net	88,106				86,762					88,106	86,762
Total assets	$ 204,571				$ 192,044					$ 204,571	$ 192,044