<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>106</ContextCount>
  <ElementCount>317</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>49</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995300 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995301 - Document - Audit Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AuditInformation</Role>
      <ShortName>Audit Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995302 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995303 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>995304 - Statement - Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ConsolidatedStatementsofOperations</Role>
      <ShortName>Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>995305 - Statement - Consolidated Statements of Operations (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ConsolidatedStatementsofOperationsParentheticals</Role>
      <ShortName>Consolidated Statements of Operations (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995306 - Statement - Consolidated Statements Of Changes In Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ConsolidatedStatementsOfChangesInEquity</Role>
      <ShortName>Consolidated Statements Of Changes In Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995307 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ConsolidatedStatementsofCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995308 - Disclosure - Nature of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/NatureofOperations</Role>
      <ShortName>Nature of Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995309 - Disclosure - Liquidity, Capital Resources and Going Concern</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/LiquidityCapitalResourcesandGoingConcern</Role>
      <ShortName>Liquidity, Capital Resources and Going Concern</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995310 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/SummaryofSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995311 - Disclosure - Assets Held for Sale and Discontinued Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperations</Role>
      <ShortName>Assets Held for Sale and Discontinued Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995312 - Disclosure - Cash and Cash Equivalents and Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/CashandCashEquivalentsandInvestments</Role>
      <ShortName>Cash and Cash Equivalents and Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995313 - Disclosure - Prepaid Expenses and Other Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/PrepaidExpensesandOtherAssets</Role>
      <ShortName>Prepaid Expenses and Other Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995314 - Disclosure - Value Added Tax Receivable, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ValueAddedTaxReceivableNet</Role>
      <ShortName>Value Added Tax Receivable, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995315 - Disclosure - Property, Plant and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/PropertyPlantandEquipmentNet</Role>
      <ShortName>Property, Plant and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995316 - Disclosure - Right-of-Use Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/RightofUseAssets</Role>
      <ShortName>Right-of-Use Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995317 - Disclosure - Accounts Payable and Other Accrued Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AccountsPayableandOtherAccruedLiabilities</Role>
      <ShortName>Accounts Payable and Other Accrued Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995318 - Disclosure - Other Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/OtherLiabilities</Role>
      <ShortName>Other Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995319 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/FairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995320 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995321 - Disclosure - Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/Equity</Role>
      <ShortName>Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995322 - Disclosure - Interest and Other Income (Expense), Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/InterestandOtherIncomeExpenseNet</Role>
      <ShortName>Interest and Other Income (Expense), Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995323 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995324 - Disclosure - Foreign Currency</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ForeignCurrency</Role>
      <ShortName>Foreign Currency</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995325 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/RelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995327 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/CybersecurityRiskManagementandStrategyDisclosure</Role>
      <ShortName>Cybersecurity Risk Management and Strategy Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>996328 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/SummaryofSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/SummaryofSignificantAccountingPolicies</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>996329 - Disclosure - Assets Held for Sale and Discontinued Operations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperationsTables</Role>
      <ShortName>Assets Held for Sale and Discontinued Operations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperations</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>996330 - Disclosure - Prepaid Expenses and Other Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/PrepaidExpensesandOtherAssetsTables</Role>
      <ShortName>Prepaid Expenses and Other Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/PrepaidExpensesandOtherAssets</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>996331 - Disclosure - Property, Plant and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/PropertyPlantandEquipmentNetTables</Role>
      <ShortName>Property, Plant and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/PropertyPlantandEquipmentNet</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>996332 - Disclosure - Accounts Payable and Other Accrued Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AccountsPayableandOtherAccruedLiabilitiesTables</Role>
      <ShortName>Accounts Payable and Other Accrued Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/AccountsPayableandOtherAccruedLiabilities</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>996333 - Disclosure - Other Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/OtherLiabilitiesTables</Role>
      <ShortName>Other Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/OtherLiabilities</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>996334 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/FairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/FairValueMeasurements</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>996335 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/IncomeTaxes</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>996336 - Disclosure - Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/EquityTables</Role>
      <ShortName>Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/Equity</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>996337 - Disclosure - Nature of Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/NatureofOperationsDetails</Role>
      <ShortName>Nature of Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/NatureofOperations</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>996338 - Disclosure - Liquidity, Capital Resources and Going Concern (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/LiquidityCapitalResourcesandGoingConcernDetails</Role>
      <ShortName>Liquidity, Capital Resources and Going Concern (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/LiquidityCapitalResourcesandGoingConcern</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>996339 - Disclosure - Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/SummaryofSignificantAccountingPoliciesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/SummaryofSignificantAccountingPoliciesPolicies</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>996340 - Disclosure - Assets Held for Sale and Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperationsDetails</Role>
      <ShortName>Assets Held for Sale and Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperationsTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>996341 - Disclosure - Assets Held for Sale and Discontinued Operations - Schedule of Loss from Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperationsScheduleofLossfromDiscontinuedOperationsDetails</Role>
      <ShortName>Assets Held for Sale and Discontinued Operations - Schedule of Loss from Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>996342 - Disclosure - Assets Held for Sale and Discontinued Operations - Schedule of Carrying Amounts of Major Classes of Assets and Liabilities of Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperationsScheduleofCarryingAmountsofMajorClassesofAssetsandLiabilitiesofDiscontinuedOperationsDetails</Role>
      <ShortName>Assets Held for Sale and Discontinued Operations - Schedule of Carrying Amounts of Major Classes of Assets and Liabilities of Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>996343 - Disclosure - Assets Held for Sale and Discontinued Operations - Schedule of Changes in the Company's Asset Retirement and Reclamation Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AssetsHeldforSaleandDiscontinuedOperationsScheduleofChangesintheCompanysAssetRetirementandReclamationLiabilitiesDetails</Role>
      <ShortName>Assets Held for Sale and Discontinued Operations - Schedule of Changes in the Company's Asset Retirement and Reclamation Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>996344 - Disclosure - Cash and Cash Equivalents and Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/CashandCashEquivalentsandInvestmentsDetails</Role>
      <ShortName>Cash and Cash Equivalents and Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/CashandCashEquivalentsandInvestments</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>996345 - Disclosure - Schedule of Prepaid Expenses and Other Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ScheduleofPrepaidExpensesandOtherAssetsDetails</Role>
      <ShortName>Schedule of Prepaid Expenses and Other Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>996346 - Disclosure - Value Added Tax Receivable, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ValueAddedTaxReceivableNetDetails</Role>
      <ShortName>Value Added Tax Receivable, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/ValueAddedTaxReceivableNet</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>996347 - Disclosure - Property, Plant and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/PropertyPlantandEquipmentNetDetails</Role>
      <ShortName>Property, Plant and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/PropertyPlantandEquipmentNetTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>996348 - Disclosure - Property, Plant and Equipment, Net - Schedule of Components of Property, Plant and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/PropertyPlantandEquipmentNetScheduleofComponentsofPropertyPlantandEquipmentNetDetails</Role>
      <ShortName>Property, Plant and Equipment, Net - Schedule of Components of Property, Plant and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>996349 - Disclosure - Right-of-Use Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/RightofUseAssetsDetails</Role>
      <ShortName>Right-of-Use Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/RightofUseAssets</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>996350 - Disclosure - Accounts Payable and Other Accrued Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AccountsPayableandOtherAccruedLiabilitiesDetails</Role>
      <ShortName>Accounts Payable and Other Accrued Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/AccountsPayableandOtherAccruedLiabilitiesTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>996351 - Disclosure - Accounts Payable and Other Accrued Liabilities - Schedule of Accounts Payable and Other Accrued Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/AccountsPayableandOtherAccruedLiabilitiesScheduleofAccountsPayableandOtherAccruedLiabilitiesDetails</Role>
      <ShortName>Accounts Payable and Other Accrued Liabilities - Schedule of Accounts Payable and Other Accrued Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>996352 - Disclosure - Other Liabilities - Schedule of Other Current Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/OtherLiabilitiesScheduleofOtherCurrentLiabilitiesDetails</Role>
      <ShortName>Other Liabilities - Schedule of Other Current Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>996353 - Disclosure - Fair Value Measurements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/FairValueMeasurementsDetails</Role>
      <ShortName>Fair Value Measurements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/FairValueMeasurementsTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>996354 - Disclosure - Schedule of Financial Assets and Liabilities Measured on a Recurring Basis at Fair Value (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/ScheduleofFinancialAssetsandLiabilitiesMeasuredonaRecurringBasisatFairValueDetails</Role>
      <ShortName>Schedule of Financial Assets and Liabilities Measured on a Recurring Basis at Fair Value (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>996355 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/IncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/IncomeTaxesTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>996356 - Disclosure - Income Taxes - Schedule of Reconciliation of the Provision for Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/IncomeTaxesScheduleofReconciliationoftheProvisionforIncomeTaxesDetails</Role>
      <ShortName>Income Taxes - Schedule of Reconciliation of the Provision for Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>996357 - Disclosure - Income Taxes - Schedule of Reconciliation of the Provision for Income Taxes (Parentheticals)  (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/IncomeTaxesScheduleofReconciliationoftheProvisionforIncomeTaxesParentheticalsDetails</Role>
      <ShortName>Income Taxes - Schedule of Reconciliation of the Provision for Income Taxes (Parentheticals)  (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>996358 - Disclosure - Income Taxes - Schedule of Components of the Deferred Tax Assets and Deferred Tax Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/IncomeTaxesScheduleofComponentsoftheDeferredTaxAssetsandDeferredTaxLiabilitiesDetails</Role>
      <ShortName>Income Taxes - Schedule of Components of the Deferred Tax Assets and Deferred Tax Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>996359 - Disclosure - Income Taxes - Schedule of Reconciliation of the Beginning and Ending Amount of Gross Unrecognized Tax Benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/IncomeTaxesScheduleofReconciliationoftheBeginningandEndingAmountofGrossUnrecognizedTaxBenefitsDetails</Role>
      <ShortName>Income Taxes - Schedule of Reconciliation of the Beginning and Ending Amount of Gross Unrecognized Tax Benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>996360 - Disclosure - Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/EquityDetails</Role>
      <ShortName>Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/EquityTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>996361 - Disclosure - Equity - Equity Incentive Plans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/EquityEquityIncentivePlansDetails</Role>
      <ShortName>Equity - Equity Incentive Plans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996362 - Disclosure - Equity - Schedule of Common Stock Warrants Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/EquityScheduleofCommonStockWarrantsOutstandingDetails</Role>
      <ShortName>Equity - Schedule of Common Stock Warrants Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996363 - Disclosure - Interest and Other Income (Expense), Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/InterestandOtherIncomeExpenseNetDetails</Role>
      <ShortName>Interest and Other Income (Expense), Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/InterestandOtherIncomeExpenseNet</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996364 - Disclosure - Commitments and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/CommitmentsandContingenciesDetails</Role>
      <ShortName>Commitments and Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/CommitmentsandContingencies</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996365 - Disclosure - Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://goldenminerals.com/20251231/role/RelatedPartyTransactions</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="aumn-20251231.htm.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996366 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://goldenminerals.com/20251231/role/SubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="aumn-20251231.htm.htm">aumn-20251231.htm.htm</File>
    <File>aumn-20251231.xsd</File>
    <File>aumn-20251231_cal.xml</File>
    <File>aumn-20251231_def.xml</File>
    <File>aumn-20251231_lab.xml</File>
    <File>aumn-20251231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>ea028392201-img1.jpg</File>
    <File>ea028392201-img2.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="517">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="10">http://xbrl.sec.gov/cyd/2025</BaseTaxonomy>
    <BaseTaxonomy items="37">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
