INVENTORIES (Narrative) (Details) - CAD ($) $ in Thousands	12 Months Ended
Aug. 31, 2019	Aug. 31, 2018
Inventory Disclosure [Abstract]
Inventory expensed in cost of sales	$ 35,224	$ 4,658

The amount of inventories recognised as an expense during the period. [Refer: Inventories]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 2
-IssueDate 2018-01-01
-Paragraph 36
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=2&date=2018-03-01&anchor=para_36_d&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration