<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:cmcf="http://cmcf/20230217"
  xmlns:dei="http://xbrl.sec.gov/dei/2022"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:rr="http://xbrl.sec.gov/rr/2022"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="cmcf-20230217.xsd" xlink:type="simple"/>
    <context id="AsOf2023-02-17">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001175813</identifier>
        </entity>
        <period>
            <startDate>2023-02-17</startDate>
            <endDate>2023-02-17</endDate>
        </period>
    </context>
    <context id="AsOf2023-02-17_custom_S000074583Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001175813</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">cmcf:S000074583Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2023-02-17</startDate>
            <endDate>2023-02-17</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Ratio">
        <measure>pure</measure>
    </unit>
    <dei:EntityCentralIndexKey contextRef="AsOf2023-02-17">0001175813</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="AsOf2023-02-17">false</dei:AmendmentFlag>
    <dei:DocumentPeriodEndDate contextRef="AsOf2023-02-17">2022-09-30</dei:DocumentPeriodEndDate>
    <dei:DocumentType contextRef="AsOf2023-02-17">497</dei:DocumentType>
    <dei:EntityInvCompanyType contextRef="AsOf2023-02-17">N-1A</dei:EntityInvCompanyType>
    <dei:DocumentEffectiveDate contextRef="AsOf2023-02-17">2023-02-17</dei:DocumentEffectiveDate>
    <dei:EntityRegistrantName contextRef="AsOf2023-02-17">CONESTOGA FUNDS</dei:EntityRegistrantName>
    <rr:SupplementToProspectusTextBlock contextRef="AsOf2023-02-17_custom_S000074583Member">&lt;p id="xdx_A84_err--SupplementToProspectusTextBlock_zoqMM2VWdODa" style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&lt;b&gt;CONESTOGA FUNDS (the &#x201c;Trust&#x201d;)&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&lt;span style="text-transform: uppercase"&gt;&lt;b&gt;CONESTOGA
Micro Cap FUND &lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Supplement dated &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFJpc2svUmV0dXJuIERldGFpbCBEYXRhIHtFbGVtZW50c30A" id="xdx_907_edei--DocumentCreationDate_c20230217__20230217_z68MeEuyV9fa"&gt;February 17, 2023&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;To the Prospectus, Summary Prospectus and&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Statement of Additional Information (&#x201c;SAI&#x201d;),&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;each dated &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFJpc2svUmV0dXJuIERldGFpbCBEYXRhIHtFbGVtZW50c30A" id="xdx_90B_err--ProspectusDate_c20230217__20230217_zsVWZb22iPUc"&gt;January 31, 2023&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;THIS SUPPLEMENT PROVIDES NEW AND ADDITIONAL INFORMATION
BEYOND THAT CONTAINED IN THE PROSPECTUS, SUMMARY PROSPECTUS AND SAI. THIS SUPPLEMENT SHOULD BE READ IN CONJUNCTION WITH THE PROSPECTUS,
SUMMARY PROSPECTUS AND SAI, AS APPLICABLE.&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-align: justify"&gt;On February 16, 2023, the Trust&#x2019;s
Board of Trustees approved a change to the name of the Conestoga Micro Cap Fund (the &#x201c;Fund&#x201d;) to the &#x201c;Conestoga Discovery
Fund.&#x201d; The name change for the Fund will be effective on or about April 18, 2023. There will be no change to the Fund&#x2019;s investment
objective, principal investment strategies or investment limitations as a result of the name change.&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0 0 8pt"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 11pt Times New Roman, Times, Serif; margin: 0 0 8pt; text-align: center"&gt;PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE&lt;/p&gt;

</rr:SupplementToProspectusTextBlock>
    <dei:DocumentCreationDate contextRef="AsOf2023-02-17">2023-02-17</dei:DocumentCreationDate>
    <rr:ProspectusDate contextRef="AsOf2023-02-17">2023-01-31</rr:ProspectusDate>
</xbrl>
