FINANCIAL RISK MANAGEMENT (Narrative) (Details)	12 Months Ended
Jan. 31, 2019 USD ($)
FINANCIAL RISK MANAGEMENT [abstract]
Percentage of change in exchange rate	10.00%
Comprehensive loss due to change in exchange rate	$ 1,867,000

The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 41
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_41&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_ValueAtRisk
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant