<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="cik0001970743-20260417.xsd" xlink:type="simple"/>
    <context id="AsOf2026-04-17">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970743</identifier>
        </entity>
        <period>
            <startDate>2026-04-17</startDate>
            <endDate>2026-04-17</endDate>
        </period>
    </context>
    <dei:AmendmentFlag contextRef="AsOf2026-04-17" id="Fact000003">true</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="AsOf2026-04-17" id="Fact000004">0001970743</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="AsOf2026-04-17" id="Fact000009">8-K/A</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="AsOf2026-04-17" id="Fact000010">2026-04-17</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="AsOf2026-04-17" id="Fact000011">RMX INDUSTRIES, INC</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="AsOf2026-04-17" id="Fact000012">NV</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="AsOf2026-04-17" id="Fact000013">333-294940</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="AsOf2026-04-17" id="Fact000014">88-2960484</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="AsOf2026-04-17" id="Fact000015">4514 Cole Ave</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="AsOf2026-04-17" id="Fact000016">Ste. 600</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="AsOf2026-04-17" id="Fact000017">Dallas</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="AsOf2026-04-17" id="Fact000018">TX</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="AsOf2026-04-17" id="Fact000019">92075</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="AsOf2026-04-17" id="Fact000020">866</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="AsOf2026-04-17" id="Fact000021">706-4276</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="AsOf2026-04-17" id="Fact000022">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="AsOf2026-04-17" id="Fact000023">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="AsOf2026-04-17" id="Fact000024">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="AsOf2026-04-17" id="Fact000025">false</dei:PreCommencementIssuerTenderOffer>
    <dei:EntityEmergingGrowthCompany contextRef="AsOf2026-04-17" id="Fact000026">true</dei:EntityEmergingGrowthCompany>
    <dei:EntityExTransitionPeriod contextRef="AsOf2026-04-17" id="Fact000027">false</dei:EntityExTransitionPeriod>
    <dei:AmendmentDescription contextRef="AsOf2026-04-17" id="Fact000028">This
Amendment No. 1 to Current Report on Form 8-K/A (this &#x201c;Amendment&#x201d;) amends the Current Report on Form 8-K filed by RMX Industries,
Inc. (the &#x201c;Company&#x201d;) with the U.S. Securities and Exchange Commission (the &#x201c;SEC&#x201d;) on May 14, 2026 (the &#x201c;Original
Report&#x201d;), to provide the information required by Item 2.01 of Form 8-K with respect to the Company&#x2019;s acquisition of the right,
title and interest in and to certain intellectual property assets relating to software platforms (the &#x201c;IP Assets&#x201d;) of Apollo
Group Enterprises, LLC (&#x201c;Apollo&#x201d;), pursuant to the intellectual property purchase agreement dated as of May 8, 2026 (the
&#x201c;IP Purchase Agreement&#x201d;), by and between the Company and Apollo.

Except as set forth herein, this Amendment does not modify or update any other disclosure contained in the Original Report. This Amendment
should be read in conjunction with the Original Report and the Company&#x2019;s other filings with the SEC.</dei:AmendmentDescription>
</xbrl>
