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Note 13 - Commitments and Contingencies (Details Textual)						1 Months Ended			10 Months Ended	12 Months Ended
	Aug. 24, 2021 USD ($) oz	Dec. 31, 2020 USD ($)	Dec. 11, 2020 shares	Jun. 10, 2020 USD ($)	Jul. 15, 2012 USD ($)	Jan. 31, 2022 USD ($) shares	Dec. 31, 2020 USD ($) shares	Jul. 31, 2008 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 shares	Feb. 06, 2020 USD ($)	Feb. 28, 2019 USD ($)
Contingent Salary and Compensation, Retention Agreement													$ 1,500,000
Restricted Stock [Member] \| The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) \| shares										160,500	205,833
Chief Executive Officer [Member]
Contingent Salary and Compensation, Retention Agreement				$ 350,000								$ 1,000,000
Short Term Incentive Plan, Minimum Performance Target, Payout, Percentage of Base Salary				25.00%
Short Term Incentive Plan, All Performance Goals, Payout, Percentage of Base Salary				100.00%
Short Term Incentive Plan, Maximum Performance Target, Payout, Percentage of Base Salary				200.00%
Short Term Incentive Plan, Payout, Percentage Cash				50.00%
Short Term Incentive Plan, Payout, Percentage Restricted Stock				50.00%
Short Term Incentive Plan, Change of Control, Percentage of Base Salary				200.00%
Short Term Incentive Plan, Change of Control, Maximum Period of Payment (Day)				30 days
Short-term Incentive Plan, Compensation Expense, Cash Bonus						$ 300,000	$ 350,000
Chief Executive Officer [Member] \| Restricted Stock [Member] \| The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) \| shares			23,333			15,000	23,333
Chief Executive Officer [Member] \| Restricted Stock [Member] \| Share-Based Payment Arrangement, Tranche One [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)				1 year
Chief Executive Officer [Member] \| Restricted Stock [Member] \| Share-Based Payment Arrangement, Tranche Two [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)				2 years
Chief Financial Officer [Member]
Contingent Salary and Compensation, Retention Agreement												$ 250,000
Production Threshold, One [Member] \| Alaska Gold Torrent, LLC [Member]
Asset Acquisition, Contingent Consideration Arrangements, Production Threshold, Mineral Resource (Ounce) \| oz	500,000
Asset Acquisition, Contingent Consideration Arrangements, Production Threshold, Output, Gold (Ounce) \| oz	30,000
Gold to Silver Ratio									1:65
Asset Acquisition, Consideration Transferred, Contingent Consideration	$ 5,000,000
Production Threshold, One [Member] \| Alaska Gold Torrent, LLC [Member] \| Common Stock [Member]
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable	$ 3,750,000
Production Threshold, Two [Member] \| Alaska Gold Torrent, LLC [Member]
Asset Acquisition, Contingent Consideration Arrangements, Production Threshold, Mineral Resource (Ounce) \| oz	1,000,000
Asset Acquisition, Contingent Consideration Arrangements, Production Threshold, Output, Gold (Ounce) \| oz	60,000
Gold to Silver Ratio									1:65
Asset Acquisition, Consideration Transferred, Contingent Consideration	$ 5,000,000
Production Threshold, Two [Member] \| Alaska Gold Torrent, LLC [Member] \| Common Stock [Member]
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable	5,000,000
Tetlin Lease [Member]
Inception-to-date Payments to Reduce Royalty Rate									$ 225,000	$ 225,000
Decrease in Royalty Rates									0.75%	0.75%
Tetlin Lease [Member] \| Scenario 1 [Member]
Increase in Royalty Rates									0.25%	0.25%
Payment that Lessor May Pay to Lessee to Increase Royalty Rate										$ 150,000
Tetlin Lease [Member] \| Scenario 2 [Member]
Increase in Royalty Rates									0.50%	0.50%
Payment that Lessor May Pay to Lessee to Increase Royalty Rate										$ 300,000
Tetlin Lease [Member] \| Scenario 3 [Member]
Increase in Royalty Rates									0.75%	0.75%
Payment that Lessor May Pay to Lessee to Increase Royalty Rate		$ 450,000
Tetlin Lease [Member] \| Minimum [Member]
Advance Royalties to Be Paid Per Year					$ 75,000					$ 50,000
Tetlin Lease [Member] \| The Joint Venture Company [Member]
Initial Term of Leases and Concessions on Undeveloped Acreage (Year)								10 years
Extension of Term of Leases and Concessions on Undeveloped Acreage (Year)								10 years
Contractual Annual Exploration Costs								$ 350,000
Tetlin Lease [Member] \| The Joint Venture Company [Member] \| Minimum [Member]
Royalty Rate								3.00%	2.25%	2.25%
Tetlin Lease [Member] \| The Joint Venture Company [Member] \| Maximum [Member]
Royalty Rate								5.00%	4.25%	4.25%
Tetlin Lease and Certain Other Properties [Member]
Annual Claim Rentals									$ 478,650	$ 478,650
Tetlin Lease and Certain Other Properties [Member] \| The Joint Venture Company [Member] \| Royal Gold [Member]
Overriding Royalty Interest									3.00%	3.00%
Lucky Shot Prospect [Member] \| Alaska Gold Torrent, LLC [Member]
Asset Acquisition, Exploration Expenditures, Requirement, Minimum Amount During 36 Months Period	$ 10,000,000
Additional Properties [Member] \| The Joint Venture Company [Member] \| Royal Gold [Member]
Overriding Royalty Interest									2.00%	2.00%
Net Smelter Returns Silver Royalty, Percent									28.00%	28.00%
Net Smelter Returns Royalty Interest, Percent									1.00%	1.00%