Note 14 - Commitments and Contingencies (Details Textual)					1 Months Ended				9 Months Ended	16 Months Ended	19 Months Ended
	Aug. 24, 2021 USD ($) oz	Dec. 30, 2020 USD ($)	Jun. 10, 2020 USD ($)	Jul. 15, 2012 USD ($)	Dec. 31, 2022 shares	Jan. 31, 2022 USD ($) shares	Dec. 31, 2020 USD ($) shares	Jul. 31, 2008 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022	Mar. 31, 2023 USD ($)	Feb. 06, 2020 USD ($)	Feb. 28, 2019 USD ($)
Contingent Salary and Compensation, Retention Agreement													$ 1,500,000
Roc Global Financing Fees Arrangement [Member]
Term of Agreements (Month)									18 months
Financing Fee Arrangement, Percentage of Gross Proceeds Received									3.25%		3.25%
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						15,000	23,333
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures (in shares) | shares					15,000
Stock Issued During Period, Shares, New Issues (in shares) | shares					18,750
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	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
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									$ 355,805		$ 355,805
Tetlin Lease and Certain Other Properties [Member] | The Joint Venture Company [Member] | Royal Gold [Member]
Overriding Royalty Interest									3.00%		3.00%
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%