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  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
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      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001631487</identifier>
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        <period>
            <startDate>2026-07-07</startDate>
            <endDate>2026-07-07</endDate>
        </period>
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    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001631487</identifier>
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        <period>
            <startDate>2026-07-07</startDate>
            <endDate>2026-07-07</endDate>
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    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <unit id="shares">
        <measure>shares</measure>
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    <ffd:SubmissnTp contextRef="c_report" id="fee_001">F-3</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="c_report" id="fee_002">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="c_report" id="fee_003">0001631487</dei:EntityCentralIndexKey>
    <ffd:OfferingTableNa contextRef="c_report" id="fee_004" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="c_report" id="fee_005">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="c_report" id="fee_006">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="c_report" id="fee_007">F-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c_report" id="fee_008">CollPlant Biotechnologies Ltd</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="c_offering_1" id="fee_009">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_1" id="fee_010">Equity</ffd:OfferingSctyTp>
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      contextRef="c_offering_1"
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      contextRef="c_offering_1"
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      contextRef="c_offering_1"
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      id="fee_017"
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      contextRef="c_report"
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      unitRef="USD">10866473.80</ffd:TtlOfferingAmt>
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      contextRef="c_report"
      decimals="INF"
      id="fee_019"
      unitRef="USD">1500.66</ffd:TtlFeeAmt>
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      contextRef="c_report"
      decimals="INF"
      id="fee_020"
      unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
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      contextRef="c_report"
      decimals="INF"
      id="fee_021"
      unitRef="USD">0.00</ffd:TtlOffsetAmt>
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      contextRef="c_report"
      decimals="INF"
      id="fee_022"
      unitRef="USD">1500.66</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_1" id="fee_023">Pursuant to Rule 416 under the Securities Act of 1933, as amended, or the Securities Act, the Registrant is also registering hereunder an indeterminate number of additional ordinary shares that shall be issuable pursuant to Rule 416 to prevent dilution resulting from stock splits, stock dividends or similar transactions.&lt;br/&gt;&lt;br/&gt;Consists of an aggregate of (i) 4,464,707 of the Registrant&#x2019;s ordinary shares, par value NIS 1.50 per share (&#x201c;Ordinary Shares&#x201d;), and (ii) 26,582,361 Ordinary Shares issuable upon the exercise of warrants. All 31,047,068 ordinary shares are to be offered for resale by the selling shareholders named in the prospectus contained in this Registration Statement on Form F-3.&lt;br/&gt;&lt;br/&gt;Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(c) under the Securities Act and based upon the average of the high and low sale prices of the Registrant&#x2019;s ordinary shares on the Nasdaq Capital Market on July 1, 2026.&lt;br/&gt;&lt;br/&gt;The Registrant will not receive any proceeds from the sale of its ordinary shares by the selling shareholder.&lt;br/&gt;</ffd:OfferingNote>
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