<?xml version="1.0" encoding="utf-8"?>
<xbrl
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  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
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    <context id="From2026-09-28to2026-09-28">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001348362</identifier>
        </entity>
        <period>
            <startDate>2026-09-28</startDate>
            <endDate>2026-09-28</endDate>
        </period>
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    <context id="OfferingAxis_From2026-09-28to2026-09-28_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001348362</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-09-28</startDate>
            <endDate>2026-09-28</endDate>
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    <context id="OfferingAxis_From2026-09-28to2026-09-28_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001348362</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-09-28</startDate>
            <endDate>2026-09-28</endDate>
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    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Pure">
        <measure>pure</measure>
    </unit>
    <ffd:CombinedProspectusTableNa contextRef="From2026-09-28to2026-09-28" id="ixv-922">N/A</ffd:CombinedProspectusTableNa>
    <ffd:OffsetTableNa contextRef="From2026-09-28to2026-09-28" id="ixv-923">N/A</ffd:OffsetTableNa>
    <ffd:FeeExhibitTp contextRef="From2026-09-28to2026-09-28" id="ixv-924">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:SubmissnTp contextRef="From2026-09-28to2026-09-28" id="ixv-925">S-3</ffd:SubmissnTp>
    <dei:EntityCentralIndexKey contextRef="From2026-09-28to2026-09-28" id="ixv-926">0001348362</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="From2026-09-28to2026-09-28" id="ixv-927">LEXARIA BIOSCIENCE CORP.</dei:EntityRegistrantName>
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    <ffd:OfferingSctyTitl
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      id="fid_7a597257">Common Stock, par value $0.001 per share, underlying warrants with an exercise price of $12.67 per share</ffd:OfferingSctyTitl>
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    <ffd:AmtSctiesRegd
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_1"
      decimals="INF"
      id="fid_dceb6513"
      unitRef="Pure">907938</ffd:AmtSctiesRegd>
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      contextRef="OfferingAxis_From2026-09-28to2026-09-28_1"
      decimals="INF"
      id="fid_01ef5cc1"
      unitRef="Pure">3.3</ffd:MaxOfferingPricPerScty>
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      contextRef="OfferingAxis_From2026-09-28to2026-09-28_1"
      decimals="INF"
      id="fid_322db84c"
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    <ffd:FeeRate
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      decimals="INF"
      id="fid_891393ff-f535-4658-bb73-38377cbb1c7f"
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      decimals="INF"
      id="fid_fece9772-d596-4b73-8c0a-7573e52d6f83"
      unitRef="USD">261</ffd:FeeAmt>
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      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      id="fid_f649cb9e">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      id="fid_ccb406c0">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      id="fid_3998357c">Common Stock, par value $0.001 per share, underlying warrants with an exercise price of $16.15 per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      id="fid_82c5f1b4">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      decimals="INF"
      id="fid_60f7fc09"
      unitRef="Pure">15889</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      decimals="INF"
      id="fid_450eccef"
      unitRef="Pure">3.3</ffd:MaxOfferingPricPerScty>
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      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      decimals="INF"
      id="fid_9664dbd7"
      unitRef="USD">52433.7</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      decimals="INF"
      id="fid_2e93f0bc-13a7-4fd4-a1d8-36a319f2f8cb"
      unitRef="Pure">0.000087</ffd:FeeRate>
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      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      decimals="INF"
      id="fid_9a3a7f0c-8124-4190-be89-1749163f88e5"
      unitRef="USD">4.56</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="From2026-09-28to2026-09-28"
      decimals="INF"
      id="fid_c7bdb47d"
      unitRef="USD">3048629.1</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="From2026-09-28to2026-09-28"
      decimals="INF"
      id="fid_ad4b29c7-f12e-4d34-830c-4efdeb169c67"
      unitRef="USD">265.56</ffd:TtlFeeAmt>
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      contextRef="From2026-09-28to2026-09-28"
      decimals="INF"
      id="fid_7345fb01-163c-44f0-ac15-a5c886acd4cb"
      unitRef="USD">265.56</ffd:NetFeeAmt>
    <ffd:OfferingNote
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_1"
      id="fid_f1fad44b">&lt;table cellpadding="0" style="border-spacing:0;font-size:10pt;width:100%"&gt;&lt;tbody&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;(1)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;Pursuant to Rule 416(a) under the Securities Act, this Registration Statement shall also cover any additional shares of common stock of the registrant that become issuable as a result of any stock dividend, stock split, recapitalization, or other similar transaction effected without the receipt of consideration that results in an increase to the number of outstanding shares of the registrant's common stock, as applicable.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:OfferingNote
      contextRef="OfferingAxis_From2026-09-28to2026-09-28_2"
      id="fid_5dc087e6">&lt;table cellpadding="0" style="border-spacing:0;font-size:10pt;width:100%"&gt;&lt;tbody&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;(2)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;The registration fee was calculated pursuant to Rule 457(c) of the Securities Act of 1933, as amended, based on average of the high and low prices of the common stock of the registrant as reported on the Nasdaq Capital Market, on September 25, 2026, which was within five business days prior to the filing of this registration statement. &lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height:15px"&gt;&lt;td&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:left;"&gt;(3)&lt;/p&gt;&lt;/td&gt;&lt;td&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:left;"&gt;Rounded up to the nearest cent.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</ffd:OfferingNote>
</xbrl>
