Significant Events Results of St. Louis Radio Stations (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 30, 2018	May 31, 2018	May 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
NET REVENUES		$ 28,006	$ 40,164
Station operating expenses excluding LMA fees and depreciation and amortization expense		21,531	31,230
Depreciation and amortization		799	978
Gain on sale of assets, net of disposition costs		32,067	0
Operating income		35,235	5,213
Interest expense		2,641	4,666
Income before income taxes		31,839	550
St Louis [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
NET REVENUES		725	6,488
Station operating expenses excluding LMA fees and depreciation and amortization expense		1,003	4,897
Depreciation and amortization		0	139
Gain on sale of assets, net of disposition costs	$ (32,400)	(32,398)	0
Operating income		32,120	1,452
Interest expense		592	784
Income before income taxes		$ 31,528	$ 668