Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Number of warrants or rights outstanding.

+ References

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- Definition

Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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Warrants - Summary of Warrants Outstanding And Exercisable (Details)	Dec. 31, 2021 $ / shares shares	Dec. 31, 2021 $ / shares shares	Dec. 31, 2020 shares	Dec. 31, 2019 shares
Class Of Warrant Or Right [Line Items]
Warrants Outstanding	26,192,237	26,192,237	42,772,992	42,186,503
Exercise Price CAD 0.90
Class Of Warrant Or Right [Line Items]
Warrants Outstanding	10,403,150	10,403,150
Exercise Price \| $ / shares		$ 0.90
Expiry Date	Nov. 23, 2022	Nov. 23, 2022
Exercise Price CAD 0.70
Class Of Warrant Or Right [Line Items]
Warrants Outstanding	298,085	298,085
Exercise Price \| $ / shares		$ 0.70
Expiry Date	Nov. 23, 2022	Nov. 23, 2022
Exercise Price $0.82
Class Of Warrant Or Right [Line Items]
Warrants Outstanding	12,135,922	12,135,922
Exercise Price \| $ / shares	$ 0.82
Expiry Date	Dec. 17, 2022	Dec. 17, 2022
Exercise Price $0.67
Class Of Warrant Or Right [Line Items]
Warrants Outstanding	2,230,080	2,230,080
Exercise Price \| $ / shares	$ 0.67
Expiry Date	Jan. 29, 2023	Jan. 29, 2023
Exercise Price CAD 0.80
Class Of Warrant Or Right [Line Items]
Warrants Outstanding	625,000	625,000
Exercise Price \| $ / shares		$ 0.80
Expiry Date	Oct. 06, 2024	Oct. 06, 2024
Exercise Price CAD 0.80
Class Of Warrant Or Right [Line Items]
Warrants Outstanding	500,000	500,000
Exercise Price \| $ / shares		$ 0.80
Expiry Date	Oct. 06, 2025	Oct. 06, 2025