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RELATED PARTY TRANSACTIONS - Disclosure of detailed information about transactions and outstanding balances relating to key management personnel (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of transactions between related parties [line items]
Key management personnel compensation, Salary and fees	$ 1,474	$ 1,239
Key management personnel compensation, share-based payment	1,403	850
Key management personnel compensation	2,877	2,089
Management [Member]
Disclosure of transactions between related parties [line items]
Key management personnel compensation, Salary and fees	894	650
Key management personnel compensation, share-based payment	934	568
Key management personnel compensation	1,828	1,218
Outside directors [Member]
Disclosure of transactions between related parties [line items]
Key management personnel compensation, Salary and fees	301	152
Key management personnel compensation, share-based payment	469	282
Key management personnel compensation	770	434
Seabord Services Corp. [Member]
Disclosure of transactions between related parties [line items]
Key management personnel compensation, Salary and fees	279	437
Key management personnel compensation, share-based payment	0	0
Key management personnel compensation	$ 279	$ 437

X

- 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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Namespace Prefix:	ifrs-full_
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Balance Type:	na
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X

- Definition

The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2019-01-01
-Paragraph 17
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2019-en-r&anchor=para_17&doctype=Standard
-URIDate 2019-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of compensation to key management personnel in the form of share-based payments. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2019-01-01
-Paragraph 17
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2019-en-r&anchor=para_17_e&doctype=Standard
-URIDate 2019-03-27

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Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2019-01-01
-Paragraph 17
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2019-en-r&anchor=para_17_a&doctype=Standard
-URIDate 2019-03-27

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- Details

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- Details

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- Details

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