ACQUISITION (Narrative) (Details) - USD ($)		12 Months Ended
	Mar. 15, 2018	Aug. 31, 2018	May 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Business Acquisition [Line Items]
Goodwill		$ 46,329,000		$ 35,642,000	$ 35,637,000
Aeropost, Inc [Member]
Business Acquisition [Line Items]
Total cash consideration		$ 28,953,000
Period of employment from date of closing		15 months
Total consideration		$ 25,103,000
Deferred tax assets			$ 4,200,000
Deferred tax liabilities			641,000
Goodwill		$ 11,230,000	$ 4,800,000
Maximum [Member] | Aeropost, Inc [Member]
Business Acquisition [Line Items]
Total consideration	$ 5,000,000