Significant Events Results of St. Louis Radio Stations (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Apr. 30, 2018	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2018	Aug. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
NET REVENUES		$ 32,056	$ 42,848	$ 60,062	$ 83,012
Station operating expenses excluding LMA fees and depreciation and amortization expense		26,003	33,904	47,534	65,134
Depreciation and amortization		779	881	1,578	1,859
(Gain) loss on sale of assets, net of disposition costs		15	(76,706)	(32,052)	(76,706)
Operating income		2,457	82,219	37,692	87,432
Interest expense		1,715	4,548	4,356	9,214
Income before income taxes		778	75,159	32,617	75,709
St Louis [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
NET REVENUES		0	6,269	725	12,756
Station operating expenses excluding LMA fees and depreciation and amortization expense		(310)	4,841	693	9,739
Depreciation and amortization		0	140	0	279
(Gain) loss on sale of assets, net of disposition costs	$ 32,400	0	0	32,383	0
Operating income		310	1,288	32,415	2,738
Interest expense		0	849	592	1,633
Income before income taxes		$ 310	$ 439	$ 31,823	$ 1,105