Acquisitions and Dispositions (Details 1) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Business Acquisition [Line Items]
Net operating revenue	$ 36,438	$ 36,746	$ 69,183	$ 67,761
Station operating expense	25,420	25,968	50,120	50,425
Corporate general and administrative	2,620	2,583	5,337	5,065
Other operating expenses, net	8	14	8	14
Operating income	8,390	8,181	13,718	12,257
Interest expense	189	244	378	485
Other (income) expense, net	0	(409)	0	(417)
Income before income tax	8,201	8,346	13,340	12,189
Income tax expense	3,390	3,441	5,514	4,998
Net income	$ 4,811	$ 4,905	$ 7,826	$ 7,191
Basic earnings per share	$ 0.82	$ 0.85	$ 1.34	$ 1.24
Diluted earnings per share	$ 0.82	$ 0.84	$ 1.33	$ 1.23