3.26.1 html 102 294 1 true 38 0 false 4 false false R1.htm 00000001 - Document - Cover Sheet http://usgoldmining.us/role/Cover Cover Cover 1 false false R2.htm 00000002 - Statement - Consolidated Balance Sheets Sheet http://usgoldmining.us/role/BalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 00000003 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://usgoldmining.us/role/BalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 00000004 - Statement - Consolidated Statements of Operations and Comprehensive Loss Sheet http://usgoldmining.us/role/StatementsOfOperationsAndComprehensiveLoss Consolidated Statements of Operations and Comprehensive Loss Statements 4 false false R5.htm 00000005 - Statement - Consolidated Statements of Cash Flows Sheet http://usgoldmining.us/role/StatementsOfCashFlows Consolidated Statements of Cash Flows Statements 5 false false R6.htm 00000006 - Statement - Consolidated Statements of Stockholders' Equity Sheet http://usgoldmining.us/role/StatementsOfStockholdersEquity Consolidated Statements of Stockholders' Equity Statements 6 false false R7.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 7 false false R8.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 8 false false R9.htm 995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure Sheet http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure Cybersecurity Risk Management and Strategy Disclosure Notes 9 false false R10.htm 999014 - Disclosure - Business Sheet http://usgoldmining.us/role/Business Business Notes 10 false false R11.htm 999015 - Disclosure - Summary of Significant Accounting Policies Sheet http://usgoldmining.us/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 11 false false R12.htm 999016 - Disclosure - Cash and Cash Equivalents and Restricted Cash Sheet http://usgoldmining.us/role/CashAndCashEquivalentsAndRestrictedCash Cash and Cash Equivalents and Restricted Cash Notes 12 false false R13.htm 999017 - Disclosure - Prepaid Expenses Sheet http://usgoldmining.us/role/PrepaidExpenses Prepaid Expenses Notes 13 false false R14.htm 999018 - Disclosure - Property and Equipment Sheet http://usgoldmining.us/role/PropertyAndEquipment Property and Equipment Notes 14 false false R15.htm 999019 - Disclosure - Leases Sheet http://usgoldmining.us/role/Leases Leases Notes 15 false false R16.htm 999020 - Disclosure - Other Payables Sheet http://usgoldmining.us/role/OtherPayables Other Payables Notes 16 false false R17.htm 999021 - Disclosure - Asset Retirement Obligations (the ???ARO???) Sheet http://usgoldmining.us/role/AssetRetirementObligationsAro Asset Retirement Obligations (the ???ARO???) Notes 17 false false R18.htm 999022 - Disclosure - Exploration Expenses Sheet http://usgoldmining.us/role/ExplorationExpenses Exploration Expenses Notes 18 false false R19.htm 999023 - Disclosure - General and Administrative Expenses Sheet http://usgoldmining.us/role/GeneralAndAdministrativeExpenses General and Administrative Expenses Notes 19 false false R20.htm 999024 - Disclosure - Capital Stock Sheet http://usgoldmining.us/role/CapitalStock Capital Stock Notes 20 false false R21.htm 999025 - Disclosure - Net Loss Per Share Sheet http://usgoldmining.us/role/NetLossPerShare Net Loss Per Share Notes 21 false false R22.htm 999026 - Disclosure - Financial Instruments Sheet http://usgoldmining.us/role/FinancialInstruments Financial Instruments Notes 22 false false R23.htm 999027 - Disclosure - Commitments and Contingencies Sheet http://usgoldmining.us/role/CommitmentsAndContingencies Commitments and Contingencies Notes 23 false false R24.htm 999028 - Disclosure - Income Tax Sheet http://usgoldmining.us/role/IncomeTax Income Tax Notes 24 false false R25.htm 999029 - Disclosure - Related Party Transactions Sheet http://usgoldmining.us/role/RelatedPartyTransactions Related Party Transactions Notes 25 false false R26.htm 999030 - Disclosure - Subsequent Event Sheet http://usgoldmining.us/role/SubsequentEvent Subsequent Event Notes 26 false false R27.htm 999031 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://usgoldmining.us/role/SummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://usgoldmining.us/role/SummaryOfSignificantAccountingPolicies 27 false false R28.htm 999032 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://usgoldmining.us/role/SummaryOfSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://usgoldmining.us/role/SummaryOfSignificantAccountingPolicies 28 false false R29.htm 999033 - Disclosure - Cash and Cash Equivalents and Restricted Cash (Tables) Sheet http://usgoldmining.us/role/CashAndCashEquivalentsAndRestrictedCashTables Cash and Cash Equivalents and Restricted Cash (Tables) Tables http://usgoldmining.us/role/CashAndCashEquivalentsAndRestrictedCash 29 false false R30.htm 999034 - Disclosure - Prepaid Expenses (Tables) Sheet http://usgoldmining.us/role/PrepaidExpensesTables Prepaid Expenses (Tables) Tables http://usgoldmining.us/role/PrepaidExpenses 30 false false R31.htm 999035 - Disclosure - Property and Equipment (Tables) Sheet http://usgoldmining.us/role/PropertyAndEquipmentTables Property and Equipment (Tables) Tables http://usgoldmining.us/role/PropertyAndEquipment 31 false false R32.htm 999036 - Disclosure - Leases (Tables) Sheet http://usgoldmining.us/role/LeasesTables Leases (Tables) Tables http://usgoldmining.us/role/Leases 32 false false R33.htm 999037 - Disclosure - Asset Retirement Obligations (the ???ARO???) (Tables) Sheet http://usgoldmining.us/role/AssetRetirementObligationsAroTables Asset Retirement Obligations (the ???ARO???) (Tables) Tables http://usgoldmining.us/role/AssetRetirementObligationsAro 33 false false R34.htm 999038 - Disclosure - Exploration Expenses (Tables) Sheet http://usgoldmining.us/role/ExplorationExpensesTables Exploration Expenses (Tables) Tables http://usgoldmining.us/role/ExplorationExpenses 34 false false R35.htm 999039 - Disclosure - General and Administrative Expenses (Tables) Sheet http://usgoldmining.us/role/GeneralAndAdministrativeExpensesTables General and Administrative Expenses (Tables) Tables http://usgoldmining.us/role/GeneralAndAdministrativeExpenses 35 false false R36.htm 999040 - Disclosure - Capital Stock (Tables) Sheet http://usgoldmining.us/role/CapitalStockTables Capital Stock (Tables) Tables http://usgoldmining.us/role/CapitalStock 36 false false R37.htm 999041 - Disclosure - Net Loss Per Share (Tables) Sheet http://usgoldmining.us/role/NetLossPerShareTables Net Loss Per Share (Tables) Tables http://usgoldmining.us/role/NetLossPerShare 37 false false R38.htm 999042 - Disclosure - Income Tax (Tables) Sheet http://usgoldmining.us/role/IncomeTaxTables Income Tax (Tables) Tables http://usgoldmining.us/role/IncomeTax 38 false false R39.htm 999043 - Disclosure - Schedule of Estimated Useful Lives of Equipment (Details) Sheet http://usgoldmining.us/role/ScheduleOfEstimatedUsefulLivesOfEquipmentDetails Schedule of Estimated Useful Lives of Equipment (Details) Details 39 false false R40.htm 999044 - Disclosure - Business (Details Narrative) Sheet http://usgoldmining.us/role/BusinessDetailsNarrative Business (Details Narrative) Details http://usgoldmining.us/role/Business 40 false false R41.htm 999045 - Disclosure - Schedule of Cash and Cash Equivalents (Details) Sheet http://usgoldmining.us/role/ScheduleOfCashAndCashEquivalentsDetails Schedule of Cash and Cash Equivalents (Details) Details 41 false false R42.htm 999046 - Disclosure - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) Sheet http://usgoldmining.us/role/ScheduleOfCashCashEquivalentsAndRestrictedCashDetails Schedule of Cash, Cash Equivalents and Restricted Cash (Details) Details 42 false false R43.htm 999047 - Disclosure - Schedule of Prepaid Expenses (Details) Sheet http://usgoldmining.us/role/ScheduleOfPrepaidExpensesDetails Schedule of Prepaid Expenses (Details) Details 43 false false R44.htm 999048 - Disclosure - Schedule of Property and Equipment (Details) Sheet http://usgoldmining.us/role/ScheduleOfPropertyAndEquipmentDetails Schedule of Property and Equipment (Details) Details 44 false false R45.htm 999049 - Disclosure - Schedule of Operating Lease Payments (Details) Sheet http://usgoldmining.us/role/ScheduleOfOperatingLeasePaymentsDetails Schedule of Operating Lease Payments (Details) Details 45 false false R46.htm 999050 - Disclosure - Schedule of Total lease Payments (Details) Sheet http://usgoldmining.us/role/ScheduleOfTotalLeasePaymentsDetails Schedule of Total lease Payments (Details) Details 46 false false R47.htm 999051 - Disclosure - Leases (Details Narrative) Sheet http://usgoldmining.us/role/LeasesDetailsNarrative Leases (Details Narrative) Details http://usgoldmining.us/role/LeasesTables 47 false false R48.htm 999052 - Disclosure - Other Payables (Details Narrative) Sheet http://usgoldmining.us/role/OtherPayablesDetailsNarrative Other Payables (Details Narrative) Details http://usgoldmining.us/role/OtherPayables 48 false false R49.htm 999053 - Disclosure - Schedule of Asset Retirement Obligations Value Assumptions (Details) Sheet http://usgoldmining.us/role/ScheduleOfAssetRetirementObligationsValueAssumptionsDetails Schedule of Asset Retirement Obligations Value Assumptions (Details) Details 49 false false R50.htm 999054 - Disclosure - Schedule of Asset Retirement Obligations (Details) Sheet http://usgoldmining.us/role/ScheduleOfAssetRetirementObligationsDetails Schedule of Asset Retirement Obligations (Details) Details 50 false false R51.htm 999055 - Disclosure - Schedule of Costs Incurred For Exploration Activities (Details) Sheet http://usgoldmining.us/role/ScheduleOfCostsIncurredForExplorationActivitiesDetails Schedule of Costs Incurred For Exploration Activities (Details) Details 51 false false R52.htm 999056 - Disclosure - Schedule of General and Administrative Expenses (Details) Sheet http://usgoldmining.us/role/ScheduleOfGeneralAndAdministrativeExpensesDetails Schedule of General and Administrative Expenses (Details) Details 52 false false R53.htm 999057 - Disclosure - Schedule of Weighted Average Basis Assumption Used in the Black-Scholes Option Pricing Model (Details) Sheet http://usgoldmining.us/role/ScheduleOfWeightedAverageBasisAssumptionUsedInBlack-scholesOptionPricingModelDetails Schedule of Weighted Average Basis Assumption Used in the Black-Scholes Option Pricing Model (Details) Details 53 false false R54.htm 999058 - Disclosure - Schedule of Stock Option Activity (Details) Sheet http://usgoldmining.us/role/ScheduleOfStockOptionActivityDetails Schedule of Stock Option Activity (Details) Details 54 false false R55.htm 999059 - Disclosure - Schedule of RSUs Activity (Details) Sheet http://usgoldmining.us/role/ScheduleOfRsusActivityDetails Schedule of RSUs Activity (Details) Details 55 false false R56.htm 999060 - Disclosure - Capital Stock (Details Narrative) Sheet http://usgoldmining.us/role/CapitalStockDetailsNarrative Capital Stock (Details Narrative) Details http://usgoldmining.us/role/CapitalStockTables 56 false false R57.htm 999061 - Disclosure - Schedule of Reconciliation of Net Loss Per Share of Common Stock (Details) Sheet http://usgoldmining.us/role/ScheduleOfReconciliationOfNetLossPerShareOfCommonStockDetails Schedule of Reconciliation of Net Loss Per Share of Common Stock (Details) Details 57 false false R58.htm 999062 - Disclosure - Net Loss Per Share (Details Narrative) Sheet http://usgoldmining.us/role/NetLossPerShareDetailsNarrative Net Loss Per Share (Details Narrative) Details http://usgoldmining.us/role/NetLossPerShareTables 58 false false R59.htm 999063 - Disclosure - Financial Instruments (Details Narrative) Sheet http://usgoldmining.us/role/FinancialInstrumentsDetailsNarrative Financial Instruments (Details Narrative) Details http://usgoldmining.us/role/FinancialInstruments 59 false false R60.htm 999064 - Disclosure - Commitments and Contingencies (Details Narrative) Sheet http://usgoldmining.us/role/CommitmentsAndContingenciesDetailsNarrative Commitments and Contingencies (Details Narrative) Details http://usgoldmining.us/role/CommitmentsAndContingencies 60 false false R61.htm 999065 - Disclosure - Schedule of Income Tax Expense (benefit) (Details) Sheet http://usgoldmining.us/role/ScheduleOfIncomeTaxExpenseBenefitDetails Schedule of Income Tax Expense (benefit) (Details) Details 61 false false R62.htm 999066 - Disclosure - Schedule of Effective Tax Rate (Details) Sheet http://usgoldmining.us/role/ScheduleOfEffectiveTaxRateDetails Schedule of Effective Tax Rate (Details) Details 62 false false R63.htm 999067 - Disclosure - Schedule of Deferred Tax Assets (Details) Sheet http://usgoldmining.us/role/ScheduleOfDeferredTaxAssetsDetails Schedule of Deferred Tax Assets (Details) Details 63 false false R64.htm 999068 - Disclosure - Summary of Operating Loss Carryforwards (Details) Sheet http://usgoldmining.us/role/SummaryOfOperatingLossCarryforwardsDetails Summary of Operating Loss Carryforwards (Details) Details 64 false false R65.htm 999069 - Disclosure - Income Tax (Details Narrative) Sheet http://usgoldmining.us/role/IncomeTaxDetailsNarrative Income Tax (Details Narrative) Details http://usgoldmining.us/role/IncomeTaxTables 65 false false R66.htm 999070 - Disclosure - Related Party Transactions (Details Narrative) Sheet http://usgoldmining.us/role/RelatedPartyTransactionsDetailsNarrative Related Party Transactions (Details Narrative) Details http://usgoldmining.us/role/RelatedPartyTransactions 66 false false R67.htm 999071 - Disclosure - Subsequent Event (Details Narrative) Sheet http://usgoldmining.us/role/SubsequentEventDetailsNarrative Subsequent Event (Details Narrative) Details http://usgoldmining.us/role/SubsequentEvent 67 false false All Reports Book All Reports form10-k.htm usgo-20251231.xsd usgo-20251231_cal.xml usgo-20251231_def.xml usgo-20251231_lab.xml usgo-20251231_pre.xml form10-k_001.jpg form10-k_002.jpg form10-k_003.jpg form10-k_004.jpg form10-k_005.jpg form10-k_006.jpg form10-k_007.jpg http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/cyd/2025 http://xbrl.sec.gov/dei/2025 true true