Acquisitions and Dispositions (Details 1) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Net operating revenue	$ 142,591	$ 139,458
Station operating expense	101,557	102,401
Corporate general and administrative	10,980	10,091
Other operating (income) expenses, net	(1,393)	541
Impairment of intangible assets	0	874
Operating income	31,447	25,551
Interest expense	776	888
Write-off of debt issuance costs	0	557
Other income	0	(417)
Income before income tax expense	30,671	24,523
Income tax expense	12,494	10,242
Net income	$ 18,177	$ 14,281
Basic earnings per share (in dollars per share)	$ 3.10	$ 2.46
Diluted earnings per share (in dollars per share)	$ 3.09	$ 2.44