<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.25.4</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>475</ContextCount>
  <ElementCount>460</ElementCount>
  <EntityCount>2</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>76</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100090 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DocumentCover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100100 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementConsolidatedStatementsOfOperations</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100300 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS DEFICIT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementConsolidatedStatementsOfStockholdersDeficit</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF STOCKHOLDERS DEFICIT</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>110101 - Disclosure - Organization</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOrganization</Role>
      <ShortName>Organization</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>110201 - Disclosure - Restatement of Previously Issued Financial Statements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatements</Role>
      <ShortName>Restatement of Previously Issued Financial Statements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>110301 - Disclosure - Going Concern and Financial Condition</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureGoingConcernAndFinancialCondition</Role>
      <ShortName>Going Concern and Financial Condition</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>110401 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>110501 - Disclosure - Inventory</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureInventory</Role>
      <ShortName>Inventory</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>110601 - Disclosure - Property And Equipment Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNet</Role>
      <ShortName>Property And Equipment Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>110701 - Disclosure - Intellectual Property</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualProperty</Role>
      <ShortName>Intellectual Property</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>110801 - Disclosure - Related Party</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedParty</Role>
      <ShortName>Related Party</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>110901 - Disclosure - Operating Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeases</Role>
      <ShortName>Operating Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>111001 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>111101 - Disclosure - Stock Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensation</Role>
      <ShortName>Stock Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>111201 - Disclosure - Warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureWarrants</Role>
      <ShortName>Warrants</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>111301 - Disclosure - Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureTaxes</Role>
      <ShortName>Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>111401 - Disclosure - Segment and Geographic Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformation</Role>
      <ShortName>Segment and Geographic Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>111501 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>111601 - Disclosure - Restatement of Quarterly Financial Information (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnaudited</Role>
      <ShortName>Restatement of Quarterly Financial Information (Unaudited)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>120402 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>130203 - Disclosure - Restatement of Previously Issued Financial Statements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsTables</Role>
      <ShortName>Restatement of Previously Issued Financial Statements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatements</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>130403 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>130503 - Disclosure - Inventory (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureInventoryTables</Role>
      <ShortName>Inventory (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureInventory</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>130603 - Disclosure - Property And Equipment Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNetTables</Role>
      <ShortName>Property And Equipment Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>130703 - Disclosure - Intellectual Property (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTables</Role>
      <ShortName>Intellectual Property (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualProperty</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>130803 - Disclosure - Related Party (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartyTables</Role>
      <ShortName>Related Party (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRelatedParty</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>130903 - Disclosure - Operating Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</Role>
      <ShortName>Operating Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeases</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>131103 - Disclosure - Stock Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationTables</Role>
      <ShortName>Stock Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureStockBasedCompensation</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>131203 - Disclosure - Warrants (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureWarrantsTables</Role>
      <ShortName>Warrants (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureWarrants</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>131303 - Disclosure - Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureTaxesTables</Role>
      <ShortName>Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureTaxes</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>131403 - Disclosure - Segment and Geographic Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformationTables</Role>
      <ShortName>Segment and Geographic Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformation</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>131603 - Disclosure - Restatement of Quarterly Financial Information (Unaudited) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnauditedTables</Role>
      <ShortName>Restatement of Quarterly Financial Information (Unaudited) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnaudited</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>140101 - Disclosure - Organization (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOrganizationDetailsNarrative</Role>
      <ShortName>Organization (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOrganization</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>140201 - Disclosure - Restatement of Previously Issued Financial Statements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsDetails</Role>
      <ShortName>Restatement of Previously Issued Financial Statements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>140202 - Disclosure - Restatement of Previously Issued Financial Statements (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsDetails1</Role>
      <ShortName>Restatement of Previously Issued Financial Statements (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>140203 - Disclosure - Restatement of Previously Issued Financial Statements (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsDetails2</Role>
      <ShortName>Restatement of Previously Issued Financial Statements (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>140204 - Disclosure - Restatement of Previously Issued Financial Statements (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsDetails3</Role>
      <ShortName>Restatement of Previously Issued Financial Statements (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>140205 - Disclosure - Restatement of Previously Issued Financial Statements (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsDetailsNarrative</Role>
      <ShortName>Restatement of Previously Issued Financial Statements (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfPreviouslyIssuedFinancialStatementsTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>140301 - Disclosure - Going Concern and Financial Condition (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureGoingConcernAndFinancialConditionDetailsNarrative</Role>
      <ShortName>Going Concern and Financial Condition (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureGoingConcernAndFinancialCondition</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>140401 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>140402 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails1</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>140403 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails2</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>140404 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails3</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>140405 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetailsNarrative</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>140501 - Disclosure - Inventory (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureInventoryDetails</Role>
      <ShortName>Inventory (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureInventoryTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>140601 - Disclosure - Property and Equipment Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNetDetails</Role>
      <ShortName>Property and Equipment Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>140602 - Disclosure - Property and Equipment Net (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNetDetailsNarrative</Role>
      <ShortName>Property and Equipment Net (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>140701 - Disclosure - Intellectual Property (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyDetails</Role>
      <ShortName>Intellectual Property (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>140702 - Disclosure - Intellectual Property (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyDetails1</Role>
      <ShortName>Intellectual Property (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>140703 - Disclosure - Intellectual Property (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyDetailsNarrative</Role>
      <ShortName>Intellectual Property (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>140801 - Disclosure - Related party (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartyDetails</Role>
      <ShortName>Related party (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>140802 - Disclosure - Related party (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartyDetails1</Role>
      <ShortName>Related party (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>140803 - Disclosure - Related party (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartyDetailsNarrative</Role>
      <ShortName>Related party (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>140901 - Disclosure - Operating Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetails</Role>
      <ShortName>Operating Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>140902 - Disclosure - Operating Leases (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetails1</Role>
      <ShortName>Operating Leases (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>140903 - Disclosure - Operating Leases (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetails2</Role>
      <ShortName>Operating Leases (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>140904 - Disclosure - Operating Leases (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetailsNarrative</Role>
      <ShortName>Operating Leases (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>141001 - Disclosure - Commitments and Contingencies (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureCommitmentsAndContingenciesDetailsNarrative</Role>
      <ShortName>Commitments and Contingencies (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>141101 - Disclosure - Stock Based Compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationDetails</Role>
      <ShortName>Stock Based Compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>141102 - Disclosure - Stock Based Compensation (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationDetailsNarrative</Role>
      <ShortName>Stock Based Compensation (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>141201 - Disclosure - Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureWarrantsDetails</Role>
      <ShortName>Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureWarrantsTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>141202 - Disclosure - Warrants (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureWarrantsDetails1</Role>
      <ShortName>Warrants (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureWarrantsTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>141203 - Disclosure - Warrants (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureWarrantsDetailsNarrative</Role>
      <ShortName>Warrants (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureWarrantsTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>141301 - Disclosure - Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureTaxesDetails</Role>
      <ShortName>Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureTaxesTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>141302 - Disclosure - Taxes (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureTaxesDetails1</Role>
      <ShortName>Taxes (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureTaxesTables</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>141303 - Disclosure - Taxes (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureTaxesDetails2</Role>
      <ShortName>Taxes (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureTaxesTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>141304 - Disclosure - Taxes (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureTaxesDetailsNarrative</Role>
      <ShortName>Taxes (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureTaxesTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>141401 - Disclosure - Segment and Geographic Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformationDetails</Role>
      <ShortName>Segment and Geographic Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformationTables</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>141501 - Disclosure - Subsequent Events (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSubsequentEventsDetailsNarrative</Role>
      <ShortName>Subsequent Events (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>141601 - Disclosure - Restatement of Quarterly Financial Information (Unaudited) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnauditedDetails</Role>
      <ShortName>Restatement of Quarterly Financial Information (Unaudited) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnauditedTables</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>141602 - Disclosure - Restatement of Quarterly Financial Information (Unaudited) (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnauditedDetails1</Role>
      <ShortName>Restatement of Quarterly Financial Information (Unaudited) (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnauditedTables</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>141603 - Disclosure - Restatement of Quarterly Financial Information (Unaudited) (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnauditedDetails2</Role>
      <ShortName>Restatement of Quarterly Financial Information (Unaudited) (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRestatementOfQuarterlyFinancialInformationUnauditedTables</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>200100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementCondensedConsolidatedBalanceSheets</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Uncategorized</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>200105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementConsolidatedBalanceSheetsParentheticals</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>200200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>200300 - Statement - CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY (DEFICIT) (UNAUDTIED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementCondensedConsolidatedStatementOfStockholdersEquityDeficitUnaudtied</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY (DEFICIT) (UNAUDTIED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>200400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDTIED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudtied</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDTIED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>210101 - Disclosure - Organization</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOrganizations</Role>
      <ShortName>Organization</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>210201 - Disclosure - Going Concern and Financial Condition</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureGoingConcernAndFinancialConditions</Role>
      <ShortName>Going Concern and Financial Condition</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>210301 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciess</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>210401 - Disclosure - Inventory</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureInventorys</Role>
      <ShortName>Inventory</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>210501 - Disclosure - Property And Equipment Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNets</Role>
      <ShortName>Property And Equipment Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>210601 - Disclosure - Intellectual Property</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertys</Role>
      <ShortName>Intellectual Property</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>210701 - Disclosure - Related Party</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartys</Role>
      <ShortName>Related Party</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>210801 - Disclosure - Operating Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasess</Role>
      <ShortName>Operating Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>210901 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureCommitmentsAndContingenciess</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>211001 - Disclosure - Stock Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensations</Role>
      <ShortName>Stock Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>211101 - Disclosure - Warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureWarrantss</Role>
      <ShortName>Warrants</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>211201 - Disclosure - Segment and Geographic Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformations</Role>
      <ShortName>Segment and Geographic Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>220302 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPoliciess</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>93</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>230303 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTabless</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>94</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>230403 - Disclosure - Inventory (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureInventoryTabless</Role>
      <ShortName>Inventory (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureInventory</ParentRole>
      <Position>95</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>230503 - Disclosure - Property And Equipment Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNetTabless</Role>
      <ShortName>Property And Equipment Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>96</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>230603 - Disclosure - Intellectual Property (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTabless</Role>
      <ShortName>Intellectual Property (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualProperty</ParentRole>
      <Position>97</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>230703 - Disclosure - Related Party (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartyTabless</Role>
      <ShortName>Related Party (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureRelatedParty</ParentRole>
      <Position>98</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>230803 - Disclosure - Operating Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTabless</Role>
      <ShortName>Operating Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeases</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>231003 - Disclosure - Stock Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationTabless</Role>
      <ShortName>Stock Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureStockBasedCompensation</ParentRole>
      <Position>100</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>231203 - Disclosure - Segment and Geographic Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformationTabless</Role>
      <ShortName>Segment and Geographic Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformation</ParentRole>
      <Position>101</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>240101 - Disclosure - Organization (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOrganizationDetailsNarratives</Role>
      <ShortName>Organization (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOrganization</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>240201 - Disclosure - Going Concern and Financial Condition (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureGoingConcernAndFinancialConditionDetailsNarratives</Role>
      <ShortName>Going Concern and Financial Condition (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureGoingConcernAndFinancialCondition</ParentRole>
      <Position>103</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>240301 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetailss</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>104</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>240302 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails1s</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>105</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>240303 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails2s</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>106</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>240304 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails3s</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>107</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>240305 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetailsNarratives</Role>
      <ShortName>Basis of Presentation and Summary of Significant Accounting Policies (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureBasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>108</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>240401 - Disclosure - Inventory (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureInventoryDetailss</Role>
      <ShortName>Inventory (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureInventoryTables</ParentRole>
      <Position>109</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>240501 - Disclosure - Property and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNetDetailss</Role>
      <ShortName>Property and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>240502 - Disclosure - Property and Equipment, Net (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosurePropertyAndEquipmentNetDetailsNarratives</Role>
      <ShortName>Property and Equipment, Net (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>240601 - Disclosure - Intellectual Property (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyDetailss</Role>
      <ShortName>Intellectual Property (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTables</ParentRole>
      <Position>112</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>240602 - Disclosure - Intellectual Property (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyDetails1s</Role>
      <ShortName>Intellectual Property (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTables</ParentRole>
      <Position>113</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>240603 - Disclosure - Intellectual Property (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyDetailsNarratives</Role>
      <ShortName>Intellectual Property (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureIntellectualPropertyTables</ParentRole>
      <Position>114</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>240701 - Disclosure - Related party (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartyDetailss</Role>
      <ShortName>Related party (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>240702 - Disclosure - Related party (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureRelatedPartyDetailsNarratives</Role>
      <ShortName>Related party (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>116</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>240801 - Disclosure - Operating Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetailss</Role>
      <ShortName>Operating Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>117</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>240802 - Disclosure - Operating Leases (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetails1s</Role>
      <ShortName>Operating Leases (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>118</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>240803 - Disclosure - Operating Leases (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetails2s</Role>
      <ShortName>Operating Leases (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>119</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>240804 - Disclosure - Operating Leases (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureOperatingLeasesDetailsNarratives</Role>
      <ShortName>Operating Leases (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureOperatingLeasesTables</ParentRole>
      <Position>120</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>240901 - Disclosure - Commitments and Contingencies (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureCommitmentsAndContingenciesDetailsNarratives</Role>
      <ShortName>Commitments and Contingencies (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>121</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>241001 - Disclosure - Stock Based Compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationDetailss</Role>
      <ShortName>Stock Based Compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationTables</ParentRole>
      <Position>122</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>241002 - Disclosure - Stock Based Compensation (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationDetailsNarratives</Role>
      <ShortName>Stock Based Compensation (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureStockBasedCompensationTables</ParentRole>
      <Position>123</Position>
    </Report>
    <Report instance="tmb-20250930xs1.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>241201 - Disclosure - Segment and Geographic Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformationDetailss</Role>
      <ShortName>Segment and Geographic Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://birtchtechcorp.com/role/DisclosureSegmentAndGeographicInformationTables</ParentRole>
      <Position>124</Position>
    </Report>
    <Report instance="tmb-20250930xexfees.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>995210 - Document - Submission</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ffd/role/document/submissionTable</Role>
      <ShortName>Submission</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>125</Position>
    </Report>
    <Report instance="tmb-20250930xexfees.htm">
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>995211 - Document - Offerings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ffd/role/document/feesOfferingTable</Role>
      <ShortName>Offerings</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>126</Position>
    </Report>
    <Report instance="tmb-20250930xexfees.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>995215 - Document - Fees Summary</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ffd/role/document/feesSummaryTable</Role>
      <ShortName>Fees Summary</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>127</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>tmb-20250930.xsd</File>
    <File>tmb-20250930_cal.xml</File>
    <File>tmb-20250930_def.xml</File>
    <File>tmb-20250930_lab.xml</File>
    <File>tmb-20250930_pre.xml</File>
    <File doctype="S-1" isDefinitelyFs="true" isUsgaap="true" original="tmb-20250930xs1.htm">tmb-20250930xs1.htm</File>
    <File doctype="EX-FILING FEES" original="tmb-20250930xexfees.htm">tmb-20250930xexfees.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>tmb-20250930xs1007.jpg</File>
    <File>tmb-20250930xs1017.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="3">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="1584">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="10">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="20">http://xbrl.sec.gov/ffd/2025q4</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
