Acquisitions and Dispositions (Details 1) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Business Acquisition [Line Items]
Net operating revenue	$ 28,009	$ 28,132
Station operating expense	23,397	23,070
Corporate general and administrative	2,544	2,863
Other operating (income) expenses, net	(251)	(21)
Operating income from continuing operations	2,319	2,220
Interest expense	219	208
Other income	(89)	0
Income from continuing operations, before tax	2,189	2,012
Income tax expense	660	819
Income from continuing operations, net of tax	1,529	1,193
Income from discontinued operations, net of tax	0	891
Net income	$ 1,529	$ 2,084
Basic earnings per share:
From continuing operations	$ 0.26	$ 0.20
From discontinued operations	0	0.15
Basic earnings per share	0.26	0.35
Diluted earnings per share:
From continuing operations	0.26	0.20
From discontinued operations	0	0.15
Diluted earnings per share	$ 0.26	$ 0.35