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RESTRICTED CASH AND INVESTMENTS (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
DisclosureOfRestrictedCashAndInvestmentsLineItems [Line Items]
Restricted cash and investments	$ 11,994	$ 12,255	$ 12,184
Cash and cash equivalents
DisclosureOfRestrictedCashAndInvestmentsLineItems [Line Items]
Restricted cash and investments	2,859	85	3,049
Investments
DisclosureOfRestrictedCashAndInvestmentsLineItems [Line Items]
Restricted cash and investments	9,135	12,170	9,135
Elliot Lake reclamation trust fund
DisclosureOfRestrictedCashAndInvestmentsLineItems [Line Items]
Restricted cash and investments	2,859	3,120	3,049
Letters of credit facility pledged assets
DisclosureOfRestrictedCashAndInvestmentsLineItems [Line Items]
Restricted cash and investments	9,000	9,000	9,000
Letters of credit additional collateral
DisclosureOfRestrictedCashAndInvestmentsLineItems [Line Items]
Restricted cash and investments	$ 135	$ 135	$ 135

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The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

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