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<xbrl
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  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2025"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
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  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
      xlink:type="simple"/>
    <context id="c_offering_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001787518</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
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        <period>
            <startDate>2026-08-06</startDate>
            <endDate>2026-08-06</endDate>
        </period>
    </context>
    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001787518</identifier>
        </entity>
        <period>
            <startDate>2026-08-06</startDate>
            <endDate>2026-08-06</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <unit id="shares">
        <measure>shares</measure>
    </unit>
    <ffd:SubmissnTp contextRef="c_report" id="fee_001">S-8</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="c_report" id="fee_002">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="c_report" id="fee_003">0001787518</dei:EntityCentralIndexKey>
    <ffd:PrevslyPdFlg contextRef="c_offering_1" id="fee_004">false</ffd:PrevslyPdFlg>
    <ffd:OfferingTableNa contextRef="c_report" id="fee_005" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="c_report" id="fee_006">N/A</ffd:OffsetTableNa>
    <ffd:FormTp contextRef="c_report" id="fee_007">S-8</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c_report" id="fee_008">T3 Defense Inc.</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="c_offering_1" id="fee_009">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_1" id="fee_010">Common Stock, par value $0.0001 per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c_offering_1" id="fee_011">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_1"
      decimals="0"
      id="fee_012"
      unitRef="shares">176000</ffd:AmtSctiesRegd>
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      contextRef="c_offering_1"
      decimals="INF"
      id="fee_013"
      unitRef="USD">39.95</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_014"
      unitRef="USD">7031200.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_015"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_016"
      unitRef="USD">971.01</ffd:FeeAmt>
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      contextRef="c_report"
      decimals="INF"
      id="fee_017"
      unitRef="USD">7031200.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_018"
      unitRef="USD">971.01</ffd:TtlFeeAmt>
    <ffd:TtlOffsetAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_019"
      unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_020"
      unitRef="USD">971.01</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_1" id="fee_021">Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;), this Registration Statement shall be deemed to cover any additional shares of Common Stock of the Registrant that may become issuable pursuant to the 2026 Evergreen Equity Incentive Plan (the "Plan") by reason of any stock splits, stock dividends or similar transaction effected without receipt of consideration that increases the number of outstanding shares of common stock, $0.0001 par value per share (the &#x201c;Common Stock&#x201d;).&lt;br/&gt;&lt;br/&gt;Represents up to 176,000 shares of Common Stock of the Registrant pursuant to the Plan.&lt;br/&gt;&lt;br/&gt;Pursuant to Rule 457(c) under the Securities Act, calculated on the basis of the average of the high ($42.70) and low ($37.20) prices per share of the Common Stock reported on the Nasdaq Capital Market on August 7, 2026, a date within five business days prior to the initial filing of the registration statement to which this exhibit is attached.</ffd:OfferingNote>
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