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Note 4 - Notes Receivable (Details Textual) $ in Thousands, $ in Thousands							1 Months Ended
	Jan. 11, 2024 USD ($)	Jan. 11, 2024 CAD ($)	Jul. 27, 2023 USD ($)	Nov. 03, 2021 CAD ($)	Jul. 27, 2021 USD ($)	Jul. 27, 2018 USD ($)	Dec. 31, 2022 CAD ($)	Feb. 28, 2025 USD ($)	Nov. 30, 2023 USD ($)
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	$ 743	$ 1,000					$ 750
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/2009/role/commonPracticeRef
-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 2: 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/1943274/2147479170/946-210-S99-1

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

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

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X

- 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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