RISK AND CAPITAL MANAGEMENT: FINANCIAL INSTRUMENTS (Narrative) (Details) - CAD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]
Working capital	$ 68,995	$ 75,178
Purchase fair value through other comprehensive income investments	0	$ 4,580
Rawhide Acquistion Holding, LLC [Member]
Disclosure of detailed information about financial instruments [line items]
Purchase fair value through other comprehensive income investments	$ 4,580
Percentage of equity interests acquired	19.90%
Market Risk [Member]
Disclosure of detailed information about financial instruments [line items]
Potential change in market prices	10.00%
Value at risk	$ 2,051
Currency Risk [Member]
Disclosure of detailed information about financial instruments [line items]
Potential change in market prices	10.00%
Value at risk	$ 4,625

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- Definition

Working capital

+ References

No definition available.

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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.

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- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
-Paragraph B64
-Subparagraph c
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- Definition

The cash outflow for the purchase of investments other than investments accounted for using equity method. [Refer: Investments accounted for using equity method; Investments other than investments accounted for using equity method]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 16
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 41
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-URIDate 2019-03-27

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