<?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"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  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">0002113605</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-26</startDate>
            <endDate>2026-06-26</endDate>
        </period>
    </context>
    <context id="c_offering_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002113605</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-26</startDate>
            <endDate>2026-06-26</endDate>
        </period>
    </context>
    <context id="c_offering_3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002113605</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>3</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-26</startDate>
            <endDate>2026-06-26</endDate>
        </period>
    </context>
    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002113605</identifier>
        </entity>
        <period>
            <startDate>2026-06-26</startDate>
            <endDate>2026-06-26</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">F-1</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="c_report" id="fee_002">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="c_report" id="fee_003">0002113605</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-1</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c_report" id="fee_008">Chilwa Minerals Limited</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>
    <ffd:OfferingSctyTitl contextRef="c_offering_1" id="fee_011">Ordinary shares, represented by American Depositary Shares</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_1" id="fee_012">true</ffd:Rule457oFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_1"
      decimals="0"
      id="fee_013"
      unitRef="shares">5750000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_014"
      unitRef="USD">0.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_015"
      unitRef="USD">5750000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_016"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_017"
      unitRef="USD">794.08</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="c_offering_2" id="fee_018">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_2" id="fee_019">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_2" id="fee_020">Representative's Warrants to purchase American Depositary Shares</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_2" id="fee_021">true</ffd:Rule457oFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_2"
      decimals="0"
      id="fee_022"
      unitRef="shares">0</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_023"
      unitRef="USD">0.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_024"
      unitRef="USD">0.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_025"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_026"
      unitRef="USD">0.00</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="c_offering_3" id="fee_027">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_3" id="fee_028">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_3" id="fee_029">Ordinary shares underlying the American Depositary Shares issuable upon exercise of Representative's Warrants</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_3" id="fee_030">true</ffd:Rule457oFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_3"
      decimals="0"
      id="fee_031"
      unitRef="shares">359375</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_032"
      unitRef="USD">0.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_033"
      unitRef="USD">359375.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_034"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_035"
      unitRef="USD">49.63</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_036"
      unitRef="USD">6109375.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_037"
      unitRef="USD">843.71</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_038"
      unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_039"
      unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_040"
      unitRef="USD">843.71</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_1" id="fee_041">In the form of American Depositary Shares (as evidenced by American Depositary Receipts, each representing 10 ordinary shares) have been registered on a separate registration statement on Form F-6 (File No. 333- ).&lt;br/&gt;&lt;br/&gt;The maximum aggregate offering price has been estimated solely for the purpose of determining the amount of registration fee in accordance with Rule 457(o) under the Securities Act of 1933.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_2" id="fee_042">In the form of American Depositary Shares (as evidenced by American Depositary Receipts, each representing 10 ordinary shares) have been registered on a separate registration statement on Form F-6 (File No. 333- ).&lt;br/&gt;&lt;br/&gt;The maximum aggregate offering price has been estimated solely for the purpose of determining the amount of registration fee in accordance with Rule 457(o) under the Securities Act of 1933.&lt;br/&gt;&lt;br/&gt;No fee pursuant to Rule 457(g) under the Securities Act.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_3" id="fee_043">In the form of American Depositary Shares (as evidenced by American Depositary Receipts, each representing 10 ordinary shares) have been registered on a separate registration statement on Form F-6 (File No. 333- ).&lt;br/&gt;&lt;br/&gt;The maximum aggregate offering price has been estimated solely for the purpose of determining the amount of registration fee in accordance with Rule 457(o) under the Securities Act of 1933.&lt;br/&gt;&lt;br/&gt;The maximum aggregate offering price has been estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(g) under the Securities Act. The Representative&#x2019;s Warrants are exercisable at a per share exercise price equal to 125% of the public offering price per ADS. As estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(g) under the Securities, the proposed maximum aggregate offering price of the Representative&#x2019;s Warrants is $359,375, which is equal to 125% of $287,500.</ffd:OfferingNote>
</xbrl>
