PROPERTY AND EQUIPMENT (Summary of Assets Disposed) (Details) - Disposal Group, Not Discontinued Operations [Member] - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Historical Cost	$ 19,774	$ 7,578	$ 11,740
Accumulated Depreciation	17,436	6,330	9,367
Proceeds from disposal	377	86	368
Gain/(Loss) recognized	$ (1,961)	$ (1,162)	$ (2,005)