Amount of the Company's annual assessment obligation.

No definition available.

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- Definition

Capacity of the camp that is contracted to build for the company.

+ References

No definition available.

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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

No definition available.

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- Definition

Amount of increase (decrease) in contractual obligation that is committed to be made for commercial production during the period.

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No definition available.

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount awarded to other party in litigation settlement to be paid to a South Fork Salmon Water Quality Enhancement Fund (the "Fund") to be used by the Nez Perce Tribe to support water quality improvement projects in the South Fork Salmon River watershed.

+ References

No definition available.

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- Definition

The litigation settlement amount payable period.

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No definition available.

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- Definition

Number of lawsuits.

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No definition available.

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Represents the number of lawsuits pending.

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No definition available.

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- Definition

Represents the number of new plaintiffs that filed a joint stipulation during the reporting period.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

The amount to be paid in litigation settlement to reimburse other party for legal expenses.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The review period to request court approval for Dismissal and Settlement Agreement.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

Amount of increase (decrease) in surety bond value during the period.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
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-Name Accounting Standards Codification
-Section S50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
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-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

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- Definition

Carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid within one year of the date of the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

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-Paragraph 1
-Subparagraph (SX 210.5-02(25))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Carrying amount of estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid after one year or beyond the normal operating cycle, if longer.

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Amount of loss from litigation settlement for amount awarded to other party. Excludes claims within an insurance entity's normal claims settlement process.

+ References

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Data Type:	xbrli:monetaryItemType
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- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (g)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-25

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Commitments and Contingencies (Details) $ in Thousands				3 Months Ended
Commitments and Contingencies (Details) $ in Thousands	May 08, 2026 lawsuit	Jun. 06, 2025 plaintiff	Aug. 08, 2023 USD ($)	Mar. 31, 2026 USD ($) lawsuit	Sep. 30, 2025 person	Mar. 31, 2025 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2025 USD ($)
Commitment and Contingencies
Financial assurance				$ 0
Settlement payable, current				1,000				$ 1,000
Settlement payable, long-term				$ 1,000				$ 1,000
Number of lawsuits pending \| lawsuit				2
Number of new plaintiffs that filed a joint stipulation \| plaintiff		2
CWA litigation settlement agreement
Commitment and Contingencies
Settlement amount awarded to other party			$ 5,000
Litigation settlement amount payable period			4 years
Review period to request court approval of Dismissal and Settlement Agreement			45 days
CWA settlement expense							$ 5,000
Legal expense payment settlement				$ 0		$ 0
Settlement payable, current				1,000
Settlement payable, long-term				1,000
ATCO Structures & Logistics (USA) Inc. \| Supply and installation agreement
Commitment and Contingencies
Capacity of the camp \| person					1,010
Stibnite Foundation \| Related Party
Commitment and Contingencies
Foundation payments or commitments				0
Nez Perce Tribe \| CWA litigation settlement agreement
Commitment and Contingencies
Settlement amount to be paid to the South Fork Salmon Water Quality Enhancement Fund			$ 4,000
Settlement amount to be paid to reimburse other party for legal expenses			$ 1,000
Subsequent Event
Commitment and Contingencies
Number of lawsuits \| lawsuit	2
Mining Claim Assessments
Commitment and Contingencies
Annual assessment obligation				300
Option Payments On Other Properties
Commitment and Contingencies
Commitments payable				$ 30