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Note 1 - Organization and Business (Details Textual) $ in Millions	6 Months Ended	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2024 USD ($) a	Jul. 31, 2024 USD ($)	May 17, 2023	Sep. 30, 2020
State of Alaska Located Near Tidewater [Member] | Johnson Tract Project [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		21,000
Contango Minerals [Member] | State of Alaska Mining Claims Located North and Northwest of Tetlin Lease [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		145,280
Contango Minerals [Member] | State of Alaska Mining Claims Located Near Eagle/Hona Property [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		69,780
Contango Minerals [Member] | State of Alaska Mining Claims Located Near Triple Z Property [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		14,800
Contango Minerals [Member] | State of Alaska Mining Claims Located in Richardson District [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		52,700
Contango Minerals [Member] | State of Alaska Mining Claims Located North and East of Lucky Shot Property [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		8,000
Avidian Gold Alaska Inc. [Member] | State of Alaska Mining Claims and Upland Mining Leases [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		11,711
Avidian Gold Alaska Inc. [Member] | Located in Fairbanks Mining District [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		1,021
Avidian Gold Alaska Inc. [Member] | Valdez Creek Mining District on Eastern Edge of Alaska Range [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		10,690
Avidian Gold Alaska Inc. [Member] | State of Alaska Mining Claims, Leasehold Locations And Upland Mining Lease Located In Fairbanks Mining District [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		3,380
Alaska Hard Rock Lease [Member] | Alaska Gold Torrent, LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		8,600
Peak Gold, LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		30.00%		30.00%
Peak Gold, LLC [Member] | KG Mining [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage					30.00%
The Joint Venture Company [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		30.00%
Expected Cash Needed | $	$ 248.1	$ 248.1
Equity Method Investment, Entity Shares of Expenditures, Amount | $	$ 74.5	74.5
Exploration Budget, Funded Amount | $		$ 78.6
Contribution of Unbudgeted Cash | $			$ 4.1
The Joint Venture Company [Member] | KG Mining [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		70.00%
Equity Method Investment, Ownership Percentage by Other Owner		70.00%
The Joint Venture Company [Member] | State of Alaska Mining Claims for Exploration and Development [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		13,000
The Joint Venture Company [Member] | Tetlin Lease [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of Land (Acre)		675,000
HighGold Mining Inc. [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		100.00%
JT Mining, Inc. [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		100.00%
Royal Alaska, LLC [Member] | KG Mining [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		100.00%
Royal Gold [Member] | Peak Gold, LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		40.00%
CORE Alaska, LLC [Member] | Peak Gold, LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity Method Investment, Ownership Percentage		30.00%

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