Acquisitions and Dispositions (Details 1) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Net operating revenue	$ 27,816	$ 28,975
Station operating expense	23,163	24,232
Corporate general and administrative	2,685	2,544
Other operating expense (income), net	3	(251)
Operating income	1,965	2,450
Interest expense	208	219
Interest income	(163)	(89)
Income before income tax expense	1,920	2,189
Income tax expense	550	699
Net income	$ 1,370	$ 1,621
Basic earnings per share:
Basic	$ 0.23	$ 0.27
Diluted	$ 0.23	$ 0.27