<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  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:xbrldi="http://xbrl.org/2006/xbrldi"
  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">0001710350</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-08-24</startDate>
            <endDate>2026-08-24</endDate>
        </period>
    </context>
    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001710350</identifier>
        </entity>
        <period>
            <startDate>2026-08-24</startDate>
            <endDate>2026-08-24</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">0001710350</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">Bit Digital, Inc.</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="c_offering_1" id="fee_009">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_1" id="fee_010">Ordinary Shares, par value $0.01 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">15000000</ffd:AmtSctiesRegd>
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      contextRef="c_offering_1"
      decimals="INF"
      id="fee_013"
      unitRef="USD">1.53</ffd:MaxOfferingPricPerScty>
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      contextRef="c_offering_1"
      decimals="INF"
      id="fee_014"
      unitRef="USD">22950000.00</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">3169.40</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_017"
      unitRef="USD">22950000.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_018"
      unitRef="USD">3169.40</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">3169.40</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_1" id="fee_021">Represents an aggregate of 15,000,000 Ordinary Shares issuable upon exercise of stock options, restricted stock awards, or otherwise granted, or to be granted pursuant to the Bit Digital, Inc. 2026 Omnibus Equity Incentive Plan (the &#x201c;Plan&#x201d;).&lt;br/&gt;&lt;br/&gt;Pursuant to Rule 416 under the Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;), this Registration Statement also includes an indeterminable number of Ordinary Shares which may become issuable pursuant to the anti-dilution provisions of the Plan.&lt;br/&gt;&lt;br/&gt;Any Ordinary Shares covered by an option or award granted under the Plan that is forfeited, canceled or expires (whether voluntarily or involuntarily) will be deemed not to have been issued for purposes of determining the maximum aggregate number of Ordinary Shares that may be issued under the Plan.&lt;br/&gt;&lt;br/&gt;Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(h)(1) and Rule 457(c) under the Securities Act, based upon the last sale price of the Registrant&#x2019;s Ordinary Shares, as reported on the Nasdaq Capital Market on August 21, 2026.</ffd:OfferingNote>
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