<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>188</ContextCount>
  <ElementCount>253</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>46</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00000002 - Statement - Consolidated Balance Sheets (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/BalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00000003 - Statement - Consolidated Balance Sheets (Unaudited) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/BalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Unaudited) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00000004 - Statement - Consolidated Statements of Income and Comprehensive Income (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/StatementsOfIncomeAndComprehensiveIncome</Role>
      <ShortName>Consolidated Statements of Income and Comprehensive Income (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00000005 - Statement - Consolidated Statements of Changes in Shareholders' Equity (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/StatementsOfChangesInShareholdersEquity</Role>
      <ShortName>Consolidated Statements of Changes in Shareholders' Equity (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00000006 - Statement - Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/StatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995612 - Disclosure - Organization and Nature of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/OrganizationAndNatureOfBusiness</Role>
      <ShortName>Organization and Nature of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995613 - Disclosure - Summary of significant accounting policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of significant accounting policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995614 - Disclosure - Going Concern</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/GoingConcern</Role>
      <ShortName>Going Concern</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995615 - Disclosure - Accounts receivables, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/AccountsReceivablesNet</Role>
      <ShortName>Accounts receivables, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995616 - Disclosure - Property and equipment, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/PropertyAndEquipmentNet</Role>
      <ShortName>Property and equipment, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995617 - Disclosure - Intangible assets, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IntangibleAssetsNet</Role>
      <ShortName>Intangible assets, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995618 - Disclosure - Related party transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related party transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995619 - Disclosure - Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/Equity</Role>
      <ShortName>Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995620 - Disclosure - Disposal of Subsidiary</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/DisposalOfSubsidiary</Role>
      <ShortName>Disposal of Subsidiary</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995621 - Disclosure - Income taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IncomeTaxes</Role>
      <ShortName>Income taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995622 - Disclosure - Concentrations, Risks, and Uncertainties</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/ConcentrationsRisksAndUncertainties</Role>
      <ShortName>Concentrations, Risks, and Uncertainties</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995623 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995624 - Disclosure - Subsequent Event</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SubsequentEvent</Role>
      <ShortName>Subsequent Event</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995625 - Disclosure - Summary of significant accounting policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of significant accounting policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995626 - Disclosure - Summary of significant accounting policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of significant accounting policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/SummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995627 - Disclosure - Accounts receivables, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/AccountsReceivablesNetTables</Role>
      <ShortName>Accounts receivables, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/AccountsReceivablesNet</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995628 - Disclosure - Property and equipment, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/PropertyAndEquipmentNetTables</Role>
      <ShortName>Property and equipment, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/PropertyAndEquipmentNet</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995629 - Disclosure - Intangible assets, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IntangibleAssetsNetTables</Role>
      <ShortName>Intangible assets, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/IntangibleAssetsNet</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995630 - Disclosure - Related party transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/RelatedPartyTransactionsTables</Role>
      <ShortName>Related party transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/RelatedPartyTransactions</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995631 - Disclosure - Disposal of Subsidiary (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/DisposalOfSubsidiaryTables</Role>
      <ShortName>Disposal of Subsidiary (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/DisposalOfSubsidiary</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995632 - Disclosure - Income taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IncomeTaxesTables</Role>
      <ShortName>Income taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/IncomeTaxes</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995633 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kuberresources.com/role/Leases</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995634 - Disclosure - Organization and Nature of Business (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/OrganizationAndNatureOfBusinessDetailsNarrative</Role>
      <ShortName>Organization and Nature of Business (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/OrganizationAndNatureOfBusiness</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995635 - Disclosure - Summary of significant accounting policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>Summary of significant accounting policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995636 - Disclosure - Summary of significant accounting policies (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesDetails1</Role>
      <ShortName>Summary of significant accounting policies (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995637 - Disclosure - Summary of significant accounting policies (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesDetails2</Role>
      <ShortName>Summary of significant accounting policies (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>995638 - Disclosure - Summary of significant accounting policies (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative</Role>
      <ShortName>Summary of significant accounting policies (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/SummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995639 - Disclosure - Going Concern (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/GoingConcernDetailsNarrative</Role>
      <ShortName>Going Concern (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/GoingConcern</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995640 - Disclosure - Accounts receivables, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/AccountsReceivablesNetDetails</Role>
      <ShortName>Accounts receivables, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/AccountsReceivablesNetTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995641 - Disclosure - Property and equipment, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/PropertyAndEquipmentNetDetails</Role>
      <ShortName>Property and equipment, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/PropertyAndEquipmentNetTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>995642 - Disclosure - Property and equipment, net (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/PropertyAndEquipmentNetDetailsNarrative</Role>
      <ShortName>Property and equipment, net (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/PropertyAndEquipmentNetTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>995643 - Disclosure - Intangible assets, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IntangibleAssetsNetDetails</Role>
      <ShortName>Intangible assets, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/IntangibleAssetsNetTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>995644 - Disclosure - Intangible assets, net (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IntangibleAssetsNetDetailsNarrative</Role>
      <ShortName>Intangible assets, net (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/IntangibleAssetsNetTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>995645 - Disclosure - Related party transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related party transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>995646 - Disclosure - Related party transactions (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/RelatedPartyTransactionsDetails1</Role>
      <ShortName>Related party transactions (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>995647 - Disclosure - Equity (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/EquityDetailsNarrative</Role>
      <ShortName>Equity (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/Equity</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>995648 - Disclosure - Disposal of Subsidiary (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/DisposalOfSubsidiaryDetails</Role>
      <ShortName>Disposal of Subsidiary (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/DisposalOfSubsidiaryTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>995649 - Disclosure - Disposal of Subsidiary (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/DisposalOfSubsidiaryDetailsNarrative</Role>
      <ShortName>Disposal of Subsidiary (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/DisposalOfSubsidiaryTables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>995650 - Disclosure - Income taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IncomeTaxesDetails</Role>
      <ShortName>Income taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/IncomeTaxesTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>995651 - Disclosure - Income taxes (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IncomeTaxesDetails1</Role>
      <ShortName>Income taxes (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/IncomeTaxesTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>995652 - Disclosure - Income taxes (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/IncomeTaxesDetailsNarrative</Role>
      <ShortName>Income taxes (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/IncomeTaxesTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>995653 - Disclosure - Concentrations, Risks, and Uncertainties (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/ConcentrationsRisksAndUncertaintiesDetailsNarrative</Role>
      <ShortName>Concentrations, Risks, and Uncertainties (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/ConcentrationsRisksAndUncertainties</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>995654 - Disclosure - Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/LeasesDetails</Role>
      <ShortName>Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/LeasesTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>995655 - Disclosure - Leases (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/LeasesDetails1</Role>
      <ShortName>Leases (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/LeasesTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>995656 - Disclosure - Leases (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/LeasesDetails2</Role>
      <ShortName>Leases (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/LeasesTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>995657 - Disclosure - Leases (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/LeasesDetailsNarrative</Role>
      <ShortName>Leases (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/LeasesTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="kr11724110q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>995658 - Disclosure - Subsequent Event (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kuberresources.com/role/SubsequentEventDetailsNarrative</Role>
      <ShortName>Subsequent Event (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kuberresources.com/role/SubsequentEvent</ParentRole>
      <Position>55</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="kr11724110q.htm">kr11724110q.htm</File>
    <File>kubr-20240930.xsd</File>
    <File>kubr-20240930_cal.xml</File>
    <File>kubr-20240930_def.xml</File>
    <File>kubr-20240930_lab.xml</File>
    <File>kubr-20240930_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>krorgchart.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="619">http://fasb.org/us-gaap/2024</BaseTaxonomy>
    <BaseTaxonomy items="28">http://xbrl.sec.gov/dei/2024</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2024</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
