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Note 4 - Notes Receivable (Details Textual) $ in Thousands, $ in Thousands						1 Months Ended	12 Months Ended
	Jan. 11, 2024 CAD ($)	Jul. 27, 2023 USD ($)	Nov. 03, 2021 CAD ($)	Jul. 27, 2021 USD ($)	Jul. 27, 2018 USD ($)	Dec. 31, 2022 CAD ($)	Nov. 30, 2023 USD ($)	Nov. 30, 2022 USD ($)	Nov. 30, 2021 USD ($)	Nov. 30, 2020 USD ($)
Financing Receivable, after Allowance for Credit Loss							$ 0	$ 24,421	$ 23,572	$ 96,016
Proceeds from Collection of Notes Receivable							25,000	$ 0	$ 75,000
Note Receivable Upon Completion of Galore Creek Project Pre-feasibility [Member]
Financing Receivable, after Allowance for Credit Loss					$ 75,000		75,000
Proceeds from Collection of Notes Receivable		$ 25,000		$ 75,000
Note Receivable Upon Completion of Galore Creek Project Feasibility [Member]
Financing Receivable, after Allowance for Credit Loss			$ 1,000		25,000
Note Receivable Upon Approval of Galore Creek Project Construction Plan [Member]
Financing Receivable, after Allowance for Credit Loss					75,000
Note Receivable upon Completion of Minas San Roque Project Prefeasibility [Member]
Financing Receivable, after Allowance for Credit Loss			750
Note Receivable upon Completion of Minas San Roque Project Feasibility [Member]
Financing Receivable, after Allowance for Credit Loss							$ 0
Proceeds from Collection of Notes Receivable						$ 750
Note Receivable upon Completion of Minas San Roque Project Feasibility [Member] | Subsequent Event [Member]
Proceeds from Collection of Notes Receivable	$ 1,000
Galore Creek [Member]
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates					$ 100,000
Minas San Roque [Member]
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates			$ 250
Interest Sold			49.00%

X

- Definition

Percentage of company's interest sold in the Minas San Roque project in Argentina to Marifil S.A.

+ References

No definition available.

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- Definition

Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(5)(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481990/310-10-45-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

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- Definition

The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-12

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- Definition

The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or sale of an entity that is related to it but not strictly controlled.

+ References

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-SubTopic 10
-Section 45
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-Subparagraph (b)
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