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v3.25.1

Note 14 - Debt (Details Textual) |  |  |  |  | 1 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 18, 2025 USD ($) oz | Aug. 02, 2023 oz $ / oz | May 17, 2023 USD ($) oz | Apr. 26, 2022 USD ($) EquivalentShares $ / shares shares | Jan. 31, 2025 USD ($) | Oct. 31, 2024 USD ($) | Jul. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Sep. 30, 2026 USD ($) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) oz | Dec. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) | Apr. 25, 2022
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Long-Term Debt |  |  |  |  |  |  |  | $ 20,000,000 |  |  | $ 30,000,000 | $ 27,647,500 | $ 7,647,500 |
Repayments of Long-Term Debt |  |  |  |  |  |  |  | 0 |  |  | 7,900,000 | 0 | 0 |
Long-Term Debt |  |  |  |  |  |  |  | 44,679,859 |  |  | 68,969,199 | 44,679,859 |  |
Amortization of Debt Issuance Costs and Discounts |  |  |  |  |  |  |  | 398,418 |  |  | $ 4,108,887 | 253,729 | 190,358 |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass (Ounce) | oz | 15,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Long-Term Debt | $ 10,600,000 |  |  |  | $ 13,800,000 |  |  |  |  |  |  |  |  |
Designated as Hedging Instrument [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass (Ounce) | oz |  | 124,600 |  |  |  |  |  |  |  |  | 37,861 |  |  |
Interest in Projected Production, Percentage |  | 45.00% |  |  |  |  |  |  |  |  |  |  |  |
Underlying, Derivative Mass (in USD per Ounce) | $ / oz |  | 2,025 |  |  |  |  |  |  |  |  |  |  |  |
Designated as Hedging Instrument [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass (Ounce) | oz | 15,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Peak Gold, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  | 30.00% |  |  |  |  |  |  |  | 30.00% |  |  |
Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 70,000,000 |  |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass (Ounce) | oz |  |  | 124,600 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Applicable Margin, Before Project Complete |  |  | 6.00% |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Applicable Margin, After Project Complete |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Commitment Fee, Percentage of Applicable Margin |  |  | 40.00% |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unused Borrowing Capacity, Amount |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |
Debt Instrument, Covenant, Historical Debt Service Coverage Ratio |  |  | 1.3 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Projected Debt Service Coverage Ratio |  |  | 1.3 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Loan Life Coverage Ratio |  |  | 1.4 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Discounted Present Value Cash Flow Coverage Ratio |  |  | 1.7 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Reserve Tail Ratio |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Minimum Cash Balance |  |  | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | Base Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | Adjusted Term SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | SOFR Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 0.15% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement [Member] | Term Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 65,000,000 |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Long-Term Debt |  |  | 10,000,000 |  |  |  |  |  |  |  | 60,000,000 |  |  |
Repayments of Long-Term Debt |  |  |  |  |  | $ 5,900,000 | $ 2,000,000 |  |  |  | 7,900,000 |  |  |
Outstanding term loan facility |  |  |  |  |  |  |  |  |  |  | 52,100,000 |  |  |
Debt Instrument, Unamortized Discount (Premium), Net |  |  | 2,300,000 |  |  |  |  | 2,400,000 |  |  | 1,200,000 | 2,400,000 |  |
Debt Issuance Costs, Net |  |  | 1,600,000 |  |  |  |  | 2,400,000 |  |  | 1,600,000 | 2,400,000 |  |
Long-Term Debt |  |  |  |  |  |  |  | 25,200,000 |  |  | 49,400,000 | 25,200,000 |  |
Debt Instrument, Fair Value Disclosure |  |  |  |  |  |  |  | 30,000,000 |  |  | 52,100,000 | $ 30,000,000 |  |
Interest Expense, Debt |  |  |  |  |  |  |  | 1,400,000 |  |  | 9.8 |  | 200,000 |
Interest Expense, Debt, Excluding Amortization |  |  |  |  |  |  |  | 1,100,000 |  |  | 5,800,000 |  | 145,000 |
Amortization of Debt Issuance Costs and Discounts |  |  |  |  |  |  |  | $ 300,000 |  |  | $ 4,000,000 |  | 17,000 |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  |  |  |  | 11.58% |  |  | 11.06% | 11.58% |  |
Debt Instrument, Interest Rate, Effective Percentage, Amortization of Discount and Issuance Costs |  |  |  |  |  |  |  | 5.60% |  |  | 8.50% | 5.60% |  |
Credit Agreement [Member] | Term Loan Facility [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Long-Term Debt |  |  |  |  |  |  |  |  | $ 9,600,000 | $ 42,600,000 |  |  |  |
Credit Agreement [Member] | Liquidity Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 5,000,000 |  |  |  |  |  |  |  |  |  |  |
Unsecured Convertible Debenture [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Expense, Debt |  |  |  |  |  |  |  | $ 1,000,000 |  |  |  |  |  |
Interest Expense, Debt, Excluding Amortization |  |  |  |  |  |  |  | 900,000 |  |  | $ 1,800,000 |  | 1,600,000 |
Amortization of Debt Issuance Costs and Discounts |  |  |  |  |  |  |  | $ 100,000 |  |  | $ 100,000 |  | 200,000 |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  |  |  |  | 0.60% |  |  | 0.60% | 0.60% |  |
Debt Instrument, Face Amount |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 9.00% |  |  |  |  |  |  | 9.00% |  |  | 8.00%
Debt Instrument, Interest Paid in Cash, Percentage |  |  |  | 7.00% |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Paid in Shares, Percentage |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |  |  |  | $ 30.5 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Number of Equity Instruments | EquivalentShares |  |  |  | 655,738 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Redeemable, Percentage of Par |  |  |  | 105.00% |  |  |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger |  |  |  | 130.00% |  |  |  |  |  |  |  |  |  |
Debt Instrument, Fee Percentage |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |
Share Price (in dollars per share) | $ / shares |  |  |  | $ 24.82 |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Debt Establishment Fee (in shares) | shares |  |  |  | 24,174 |  |  |  |  |  |  |  |  |  |
Investor Right Agreement, Ownership Percentage |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |
Investor Right Agreement, Maximum Percentage of Shares Transferable without Notifying in Advance |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |
Unsecured Convertible Debenture [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Fair Value Disclosure |  |  |  |  |  |  |  | $ 20,000,000 |  |  | $ 20,000,000 | $ 20,000,000 |  |
Senior Secured Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount (Premium), Net |  |  |  | $ 600,000 |  |  |  | 500,000 |  |  | 400,000 | 500,000 |  |
Debt Issuance Costs, Net |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  |  | $ 19,500,000 |  |  | 19,600,000 | $ 19,500,000 |  |
Interest Expense, Debt |  |  |  |  |  |  |  |  |  |  | $ 1,900,000 |  | $ 1,800,000 |

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- Definition The discounted present value cash flow coverage ratio under covenant of the debt instrument. + References No definition available. + Details
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- Definition Represents the percentage of par related to redeemable debt instrument based on market price of common stock being at least 130%. + References No definition available. + Details
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- Definition Effective interest rate for the original issue discount or premium and issuance costs under the debt agreement. + References No definition available. + Details
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