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EXPLORATION AND EVALUATION ASSETS - Disclosure of detailed information about exploration and evaluation expenditures (Details) - CAD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items] |  |
Exploration and evaluation assets, beginning of period | $ 41,946,079 | $ 40,650,547
Acquisition costs | 2,798,913 |
Claims maintenance | 4,963 | 11,445
Engineering | 93,307 | 213,630
Exploration and camp support | 3,003,005 |
Permitting | 185,845 | 594,423
Salary and wages | 260,903 | 365,615
Share-based payments | 82,010 | 110,419
Exploration and evaluation assets, end of period | 48,375,025 | 41,946,079
Casino Project [Member] |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Exploration and evaluation assets, beginning of period | 41,946,079 | 40,650,547
Acquisition costs | 0 |
Claims maintenance | 4,963 | 11,445
Engineering | 93,307 | 213,630
Exploration and camp support | 3,003,005 |
Permitting | 185,845 | 594,423
Salary and wages | 260,903 | 365,615
Share-based payments | 82,010 | 110,419
Exploration and evaluation assets, end of period | 45,576,112 | 41,946,079
Canadian Creek Property [Member] |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Exploration and evaluation assets, beginning of period | 0 | 0
Acquisition costs | 2,798,913 |
Claims maintenance | 0 | 0
Engineering | 0 | 0
Exploration and camp support | 0 |
Permitting | 0 | 0
Salary and wages | 0 | 0
Share-based payments | 0 | 0
Exploration and evaluation assets, end of period | $ 2,798,913 | $ 0

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- Definition The amount of assets arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2018-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=6&date=2018-03-01&anchor=para_24_b&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 Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of expense from share-based payment transactions with employees. + 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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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Acquisition costs. + References No definition available. + Details
Name: | wrn_AcquisitionCost
Namespace Prefix: | wrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Claims maintenance + References No definition available. + Details
Name: | wrn_ClaimsMaintenance
Namespace Prefix: | wrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Engineering + References No definition available. + Details
Name: | wrn_Engineering
Namespace Prefix: | wrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition It represents exploration and camp support. + References No definition available. + Details
Name: | wrn_ExplorationAndCampSupport
Namespace Prefix: | wrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Permitting + References No definition available. + Details
Name: | wrn_Permitting
Namespace Prefix: | wrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Salary and wages + References No definition available. + Details
Name: | wrn_SalaryAndWagesAsExplorationAndEvaluationExpenditure
Namespace Prefix: | wrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |