FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Narrative) (Details) - USD ($) $ in Thousands	Aug. 31, 2019	Aug. 31, 2018
Currency risk [Member]
Statements [Line Items]
Percentage of reasonably possible increase in actuarial assumption	10.00%
Value at risk	$ 3,400	$ 6,800
Interest rate risk [Member]
Statements [Line Items]
Percentage of reasonably possible increase in actuarial assumption	1.00%
Value at risk	$ 3

The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2018-01-01
-Paragraph 145
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_145_a&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant