Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Orion Gold Prepay Orion Gold Prepay [Member] Orion Gold Prepay Title of 12(b) Security Title of 12(b) Security Carrying amount Reported Value Measurement [Member] Net loss (diluted) Net Income (Loss) Available to Common Stockholders, Diluted Document Fiscal Year Focus Document Fiscal Year Focus Valuation, Black-Scholes Pricing Model Approach Valuation, Black-Scholes Pricing Model Approach [Member] Valuation, Black-Scholes Pricing Model Approach Adjustment to Compensation, Amount Adjustment to Compensation Amount Conversion ratio of gold to silver delivery Embedded Derivative, Precious Metal Conversion Ratio Embedded Derivative, Precious Metal Conversion Ratio Other Other Nonoperating (Expense), Other Other Nonoperating (Expense), Other Financial Instrument [Axis] Financial Instrument [Axis] Customer [Axis] Customer [Axis] Segment Reporting [Abstract] Common shares, unlimited authorized shares with no par value, 867,527,720 and 827,230,192 shares issued and outstanding as of September 30, 2026 and December 31, 2025, respectively Common Stock, Value, Issued To be paid, year one Lessee, Operating Lease, Liability, to be Paid, Year One Non-cash interest expense Interest Expense, Operating and Nonoperating Schedule of Long-Term Debt Schedule of Long-Term Debt Instruments [Table Text Block] Agreement embedded derivative Total other liabilities Embedded Derivative, Fair Value of Embedded Derivative Liability Orion Convertible Loan Conversion and change of controls rights Orion Convertible Loan [Member] Orion Convertible Loan Entity Ex Transition Period Entity Ex Transition Period Restatement Determination Date Restatement Determination Date Class of Warrant or Right [Domain] Class 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Inputs Reconciliation, Settlements PEO Total Compensation Amount PEO Total Compensation Amount Cash and Cash Equivalents [Abstract] Non-current liabilities Liabilities, Noncurrent [Abstract] Notional amount Derivative, Notional Amount Basic weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Amount not subject to accumulated depreciation, depletion and amortization Property, Plant, And Equipment, Amount Not Subject To Accumulated Depreciation , Depletion And Amortization Property, Plant, And Equipment, Amount Not Subject To Accumulated Depreciation , Depletion And Amortization Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current To be paid, year four Lessee, Operating Lease, Liability, to be Paid, Year Four 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Concentration Risk Type [Axis] Concentration Risk Type [Axis] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Brokered Placement Warrants Brokered Placement Warrants [Member] Brokered Placement Warrants Loss on Offtake liability (Note 9) Gain (Loss) on Contract Termination Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Capital expenditures Capital Expenditures Incurred but Not yet Paid Schedule of Segment Reporting Segment Reporting [Table Text Block] Amortization of finance costs Amortization of Debt Issuance Costs Schedule of Fair value Measurements using Significant Unobservable Inputs Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Exercise price of warrants or rights (per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Total debt Long-Term Debt New Gold Prepay And Silver Purchase Agreement New Gold Prepay And Silver Purchase Agreement [Member] New Gold Prepay And Silver Purchase Agreement Costs applicable to sales Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization And Royalties Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization And Royalties PROPERTY, PLANT AND EQUIPMENT, NET Property, Plant, and Equipment [Text Block] Income taxes payable Increase (Decrease) in Income Taxes Payable Document Period End Date Document Period End Date Cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] LOSS ON LOAN EXTINGUISHMENT Loss On Loan Extinguishment [Text Block] Loss On Loan Extinguishment Other Significant Noncash Transactions [Line Items] Other Significant Noncash Transactions [Line Items] Principal amount Debt Instrument, Face Amount To be paid, year two Lessee, Operating Lease, Liability, to be Paid, Year Two Security Exchange Name Security Exchange Name Capital expenditures, not yet paid Construction in Progress Expenditures Incurred but Not yet Paid Interest rate, effective (as percent) Debt Instrument, Interest Rate, Effective Percentage Other Other Noncash Income (Expense), Other Other Noncash Income (Expense), Other Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] SUPPLEMENTAL CASH FLOW INFORMATION Cash Flow, Supplemental Disclosures [Text Block] Risks and uncertainties and liquidity Risks And Uncertainties And Liquidity [Policy Text Block] Risks And Uncertainties And Liquidity Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested in period, fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Total losses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Number of ounces required to deliver, first delivery Number Of Ounces Required To Deliver, First Delivery Number Of Ounces Required To Deliver, First Delivery Schedule of Property, Plant And Equipment & Depreciation Property, Plant, and Equipment [Table Text Block] BASIC AND DILUTED NET LOSS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Net loss per share Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Extinguishment of Debt [Line Items] Extinguishment of Debt [Line Items] Total liabilities Liabilities Trading Symbol Trading Symbol Schedule of 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Issuance Costs Deferred Share Units Deferred Share Units (DSUs) [Member] Deferred Share Units (DSUs) Holders discount percentage Debt Instrument, Convertible, Holders Discount, Percentage Debt Instrument, Convertible, Holders Discount, Percentage OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] United States Income (Loss) from Continuing Operations before Income Taxes, Foreign Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted weighted average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Warrants to Purchase Common Shares Warrant Warrant [Member] Conversion and change of controls rights Conversion And Change Of Control Rights Liability Conversion And Change Of Control Rights Liability Debt instrument, mandatory redemption price, percentage Debt Instrument, Mandatory Redemption Price, Percentage Debt Instrument, Mandatory Redemption Price, Percentage Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Orion Gold Prepay embedded derivative Orion Gold Prepay - derivative Orion Gold Prepay Gold Prepay Agreement [Member] Gold Prepay Agreement Underlying Security Market Price Change Underlying Security Market Price Change, Percent Property, plant and equipment, net Property, plant and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Entities [Table] Entities [Table] Share based payment award performance multiplier percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Milestone Four Milestone Four [Member] Milestone Four Gross profit Gross Profit Revenue from Contract with Customer [Abstract] Less accumulated depreciation, depletion and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Award Timing Predetermined Award Timing Predetermined [Flag] Intangible Asset, Goodwill and Other [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Other expenses Total other expenses Other Nonoperating Expense 2026 Convertible Debentures 2026 Convertible Debenture [Member] 2026 Convertible Debenture Organization, Consolidation and Presentation of Financial Statements [Abstract] Debt instrument, convertible, conversion ratio Debt Instrument, Convertible, Conversion Ratio Share-based compensation and related share issuances Share-based compensation Shares Granted, Value, Share-Based Payment Arrangement, after Forfeiture All Executive Categories All Executive Categories [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Pension 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Operation Location, Statement of Income, Balance [Axis] Location, Statement of Income, Balance [Axis] Restricted cash and cash equivalents Restricted Cash and Cash Equivalent Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Customer 1 Customer One [Member] Customer One Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Total other liabilities Other Liabilities Quarterly aggregate total Number Of Ounces Required To Deliver, Quarterly Aggregate Total Number Of Ounces Required To Deliver, Quarterly Aggregate Total Offtake Termination Offtake Termination [Member] Offtake Termination Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Other Income and Expenses [Abstract] Proceeds from equity offerings Proceeds from Issuance of Common Stock Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Security, Excluded EPS Calculation [Table] 2026 Gold Prepay Agreement embedded derivative Embedded Derivative, Fair Value of Embedded Derivative Asset Common shares issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Exercise Price Award Exercise Price INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Interest payable Interest Payable Principal repayments Company repaid amount Repayments of Long-Term Debt Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Measurement Input Type [Domain] Measurement Input Type [Domain] Total losses Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings Loss on fair value measurement Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Total gross proceeds Sale of Stock, Consideration Received on Transaction Adoption Date Trading Arrangement Adoption Date Schedule of Other Nonoperating Income (Expense) Schedule of Other Nonoperating Income (Expense) [Table Text Block] Share-based payment liability Deferred Compensation Share-Based Arrangements, Liability, Current and Noncurrent Counterparty Name [Domain] Counterparty Name [Domain] Interest fixed rate (as percent) Debt Instrument, Interest Rate, Stated Percentage Total equity Beginning balance Ending balance Equity, Attributable to Parent INTEREST EXPENSES Interest Income and Interest Expense Disclosure [Text Block] Number of ounces delivered Financing Arrangements, Number Of Ounces Delivered Per Arrangement Financing Arrangements, Number Of Ounces Delivered Per Arrangement ASSETS Assets [Abstract] Other Significant Noncash Transactions [Table] Other Significant Noncash Transactions [Table] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other Liabilities Disclosure [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Operating lease liability Operating Lease, Liability Insider Trading Policies and Procedures [Line Items] Options, outstanding (in shares) Share-Based 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Reliance [Table] Share-based payment award, percentage of outstanding stock maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum Long-term prepaid Prepaid Expense, Noncurrent COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of operating segments Number of Operating Segments Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Lone Tree Lone Tree Minning Company [Member] Lone Tree Minning Company Restricted share units Restricted Stock Units (RSUs) [Member] Entity Central Index Key Entity Central Index Key Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Name of Property [Domain] Name of Property [Domain] Other Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Reclamation expenditures Asset Retirement Obligation, Cash Paid to Settle Accounts Receivable Accounts Receivable [Member] Income Statement [Abstract] EQUITY Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Expenses Operating Expenses [Abstract] Schedule of Components of Income Tax Expense (Recovery) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] City Area Code City Area Code Warrant and stock option exercises Proceeds From Warrant And Stock Option Exercises Proceeds From Warrant And Stock Option Exercises Total Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization All Individuals All Individuals [Member] Convertible debt securities Convertible Debt Securities [Member] Expected volatility Measurement Input, Price Volatility [Member] Fair value of debt Debt Instrument, Fair Value Disclosure Orion Warrants, Expiring September 2026 Orion Warrants, Expiring September 2026 [Member] Orion Warrants, Expiring September 2026 Name Forgone Recovery, Individual Name Accordion feature, term Debt Instrument, Accordion Feature, Term Debt Instrument, Accordion Feature, Term Finished goods Inventory, Finished Goods, Net of Reserves Stockpile at third-party processing facility Inventory, Stockpile At Third Party Processing Facility Inventory, Stockpile At Third Party Processing Facility 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[Member] Ruby Hill Mining Company LLC Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Schedule of Fair Value Measurement Inputs and Valuation Techniques Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common shares, outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Diluted net loss per share (in dollars per share) Earnings Per Share, Diluted Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Entity Current Reporting Status Entity Current Reporting Status Cash (used in) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Net change in operating assets and liabilities Net change in operating assets and liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital Number of authorized shares, not disclosed Number Of Authorized Shares, Not Disclosed Number Of Authorized Shares, Not Disclosed Interest capitalization Interest capitalization Interest Costs Capitalized Current portion of liability Class Of Warrant Or Right, Outstanding, Current Portion Class Of Warrant Or Right, Outstanding, Current Portion Adjustments Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Share-Based Payment Arrangement [Abstract] FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Revenues Revenue Revenue from 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derivatives Derivative, Number of Instruments Held Title and Position [Axis] Title and Position [Axis] Sale of Stock [Axis] Sale of Stock [Axis] Other assets Less current portion Other Assets, Current Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Liability, beginning balance Liability, ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Schedule of Fair Value Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Loss from operations Operating Income (Loss) Convertible Debentures Convertible Debentures [Member] Convertible Debentures Current Fiscal Year End Date Current Fiscal Year End Date Warrant liability Total warrant liability Warrants and Rights Outstanding Principal amount Proceeds from Issuance of Debt Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Warrant Liability Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common shares, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Entity Information [Line Items] Entity Information [Line Items] OTHER ASSETS Other Assets Disclosure [Text Block] Reclamation liabilities Asset Retirement Obligations, 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Date Trading Arrangement Termination Date Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Shares issued in relation to Offtake settlement Shares Issued For Offtake Settlement Shares Issued For Offtake Settlement Repayment Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Accrued interest Debt Instrument, Increase, Accrued Interest Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other liabilities Less current portion Other Liabilities, Current Other assets Long-term portion Other Assets, Noncurrent Document Type Document Type Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Loss on loan extinguishment Loss on loan extinguishment Gain (Loss) on Extinguishment of Debt Fair Value as of Grant Date Award Grant Date Fair Value Repayments of convertible debt Repayments of Convertible Debt Redemption price, percentage Debt Instrument, Redemption Price, Percentage SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] 2026 Gold Prepay 2026 Gold Prepay - derivative 2026 Gold Prepay [Member] 2026 Gold Prepay Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Cove Aureka Gold Corporation [Member] Aureka Gold Corporation Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Orion Warrants, 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on Recurring Basis with Unobservable Inputs Lone Tree Plant Lone Tree Plant [Member] Lone Tree Plant Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Reclassification of RSU liability Reclassification of Restricted Stock Units Liability Reclassification of Restricted Stock Units Liability