PROPERTY AND EQUIPMENT (Summary of Assets Disposed) (Details) - Disposal Group, Not Discontinued Operations [Member] - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Historical Cost	$ 10,465	$ 19,774	$ 7,578
Accumulated Depreciation	8,388	17,436	6,330
Receivables and Proceeds from disposal	738	377	86
Gain/(Loss) Recognized	$ (1,339)	$ (1,961)	$ (1,162)