Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment reporting information
Net operating revenue	$ 34,358	$ 33,831	$ 63,419	$ 63,254
Station operating expenses	24,311	23,499	47,076	46,446
Corporate general and administrative	2,583	2,120	5,065	4,273
Other operating expense	14	0	14	0
Operating income (loss)	7,450	8,212	11,264	12,535
Depreciation and amortization	1,606	1,640	3,195	3,285
Total assets	200,299	201,988	200,299	201,988	$ 192,044
Radio [Member]
Segment reporting information
Net operating revenue	29,017	28,851	53,293	53,776
Station operating expenses	20,819	20,200	40,241	39,939
Corporate general and administrative	0	0	0	0
Other operating expense	14	0	14	0
Operating income (loss)	8,184	8,651	13,038	13,837
Depreciation and amortization	1,207	1,236	2,381	2,466
Total assets	140,872	144,953	140,872	144,953
Television [Member]
Segment reporting information
Net operating revenue	5,341	4,980	10,126	9,478
Station operating expenses	3,492	3,299	6,835	6,507
Corporate general and administrative	0	0	0	0
Other operating expense	0	0	0	0
Operating income (loss)	1,849	1,681	3,291	2,971
Depreciation and amortization	322	346	669	691
Total assets	22,767	22,368	22,767	22,368
Corporate and Other [Member]
Segment reporting information
Net operating revenue	0	0	0	0
Station operating expenses	0	0	0	0
Corporate general and administrative	2,583	2,120	5,065	4,273
Other operating expense	0	0	0	0
Operating income (loss)	(2,583)	(2,120)	(5,065)	(4,273)
Depreciation and amortization	77	58	145	128
Total assets	$ 36,660	$ 34,667	$ 36,660	$ 34,667