Discontinued Operations (Details 1) - USD ($) $ in Thousands		12 Months Ended
	May 09, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash paid during the period
Interest		$ 635	$ 884	$ 850
Income taxes		3,893	2,864	2,420
Significant operating non-cash items
Depreciation and amortization		6,945	6,786	6,251
Significant investing items
Acquisition of property and equipment		5,732	5,922	6,246
Joplin, Missouri and Victoria, Texas Television Stations [Member]
Cash paid during the period
Interest		0	0	21
Income taxes		0	0	23,260
Significant operating non-cash items
Depreciation and amortization		0	0	445
Broadcast program rights amortization		0	0	418
Barter revenue, net		0	0	18
Acquisition of property and equipment		0	0	0
Loss (gain) on sale of assets		0	0	31
Pretax gain on television sale		0	0	50,842
Significant investing items
Acquisition of property and equipment		0	0	335
Proceeds from sale and disposal of assets		0	0	0
Net proceeds from sale of television stations	$ 69,500	0	0	69,528
Proceeds from insurance claim		$ 0	$ 0	$ 0