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SHORT-TERM INVESTMENTS (Narrative) (Details) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CAD ($)
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Short Term Investment Abstract |  |
Short-term investments |  | $ 1,505,161
Interest receivable |  | $ 5,161

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- Definition The amount of interest recognised as a receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount of short-term deposits held by the entity that are not classified as cash equivalents. [Refer: Cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Represents short term investment. + References No definition available. + Details
Name: | wrn_ShortTermInvestmentAbstract
Namespace Prefix: | wrn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration