Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment reporting information
Net operating revenue	$ 36,438	$ 34,358	$ 69,183	$ 63,419
Station operating expense	25,420	24,311	50,105	47,076
Corporate general and administrative	2,620	2,583	5,337	5,065
Operating income (loss)	8,390	7,450	13,733	11,264
Total assets	213,984		213,984		$ 204,571
Radio [Member]
Segment reporting information
Net operating revenue	30,866	29,017	58,330	53,293
Station operating expense	21,842	20,819	42,982	40,241
Corporate general and administrative	0	0	0	0
Other operating expense	8	14	5	14
Operating income (loss)	9,016	8,184	15,343	13,038
Depreciation and amortization	1,406	1,207	2,752	2,381
Total assets	164,614	140,872	164,614	140,872
Television [Member]
Segment reporting information
Net operating revenue	5,572	5,341	10,853	10,126
Station operating expense	3,578	3,492	7,123	6,835
Corporate general and administrative	0	0	0	0
Other operating expense	0	0	3	0
Operating income (loss)	1,994	1,849	3,727	3,291
Depreciation and amortization	332	322	653	669
Total assets	23,500	22,767	23,500	22,767
Corporate and Other [Member]
Segment reporting information
Net operating revenue	0	0	0	0
Station operating expense	0	0	0	0
Corporate general and administrative	2,620	2,583	5,337	5,065
Other operating expense	0	0	0	0
Operating income (loss)	(2,620)	(2,583)	(5,337)	(5,065)
Depreciation and amortization	69	77	138	145
Total assets	25,870	36,660	25,870	36,660
Consolidated Segments [Member]
Segment reporting information
Net operating revenue	36,438	34,358	69,183	63,419
Station operating expense	25,420	24,311	50,105	47,076
Corporate general and administrative	2,620	2,583	5,337	5,065
Other operating expense	8	14	8	14
Operating income (loss)	8,390	7,450	13,733	11,264
Depreciation and amortization	1,807	1,606	3,543	3,195
Total assets	$ 213,984	$ 200,299	$ 213,984	$ 200,299