<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.20.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>278</ContextCount>
  <ElementCount>308</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>57</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/StatementCondensedConsolidatedBalanceSheets</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00105 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/StatementCondensedConsolidatedStatementsOfOperations</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIENCY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/StatementCondensedConsolidatedStatementsOfChangesInStockholdersDeficiency</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIENCY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00305 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIENCY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/StatementCondensedConsolidatedStatementsOfChangesInStockholdersDeficiencyParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIENCY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/StatementCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00405 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/StatementCondensedConsolidatedStatementsOfCashFlowsParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10101 - Disclosure - BUSINESS ORGANIZATION AND NATURE OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureBusinessOrganizationAndNatureOfOperations</Role>
      <ShortName>BUSINESS ORGANIZATION AND NATURE OF OPERATIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10201 - Disclosure - GOING CONCERN AND MANAGEMENT'S PLANS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureGoingConcernAndManagementSPlans</Role>
      <ShortName>GOING CONCERN AND MANAGEMENT'S PLANS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10301 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10401 - Disclosure - PREPAID EXPENSES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosurePrepaidExpenses</Role>
      <ShortName>PREPAID EXPENSES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10501 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities</Role>
      <ShortName>ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10601 - Disclosure - ACCRUED ISSUABLE EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureAccruedIssuableEquity</Role>
      <ShortName>ACCRUED ISSUABLE EQUITY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10701 - Disclosure - LINE OF CREDIT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureLineOfCredit</Role>
      <ShortName>LINE OF CREDIT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>10801 - Disclosure - NOTES PAYABLE</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureNotesPayable</Role>
      <ShortName>NOTES PAYABLE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>10901 - Disclosure - LOAN PAYABLE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureLoanPayable</Role>
      <ShortName>LOAN PAYABLE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11001 - Disclosure - RELATED PARTY TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureRelatedPartyTransactions</Role>
      <ShortName>RELATED PARTY TRANSACTIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11101 - Disclosure - STOCKHOLDERS' DEFICIENCY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureStockholdersDeficiency</Role>
      <ShortName>STOCKHOLDERS' DEFICIENCY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11201 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11301 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>20302 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>30303 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>30403 - Disclosure - PREPAID EXPENSES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosurePrepaidExpensesTables</Role>
      <ShortName>PREPAID EXPENSES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosurePrepaidExpenses</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>30503 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables</Role>
      <ShortName>ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>30603 - Disclosure - ACCRUED ISSUABLE EQUITY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureAccruedIssuableEquityTables</Role>
      <ShortName>ACCRUED ISSUABLE EQUITY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureAccruedIssuableEquity</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>31103 - Disclosure - STOCKHOLDERS' DEFICIENCY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureStockholdersDeficiencyTables</Role>
      <ShortName>STOCKHOLDERS' DEFICIENCY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureStockholdersDeficiency</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>40201 - Disclosure - GOING CONCERN AND MANAGEMENT'S PLANS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureGoingConcernAndManagementSPlansDetails</Role>
      <ShortName>GOING CONCERN AND MANAGEMENT'S PLANS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureGoingConcernAndManagementSPlans</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>40301 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Customer concentrations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPoliciesCustomerConcentrationsDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Customer concentrations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>40302 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- consolidated statements of operations: (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPoliciesConsolidatedStatementsOfOperationsDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES- consolidated statements of operations: (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>40303 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - weighted average dilutive common shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPoliciesWeightedAverageDilutiveCommonSharesDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - weighted average dilutive common shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>40304 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>40401 - Disclosure - PREPAID EXPENSES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosurePrepaidExpensesDetails</Role>
      <ShortName>PREPAID EXPENSES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosurePrepaidExpensesTables</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>40501 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesDetails</Role>
      <ShortName>ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>40601 - Disclosure - ACCRUED ISSUABLE EQUITY (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureAccruedIssuableEquityDetails</Role>
      <ShortName>ACCRUED ISSUABLE EQUITY (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureAccruedIssuableEquityTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>40602 - Disclosure - ACCRUED ISSUABLE EQUITY - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureAccruedIssuableEquityAdditionalInformationDetails</Role>
      <ShortName>ACCRUED ISSUABLE EQUITY - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>40701 - Disclosure - LINE OF CREDIT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureLineOfCreditDetails</Role>
      <ShortName>LINE OF CREDIT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureLineOfCredit</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>40801 - Disclosure - NOTES PAYABLE (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureNotesPayableDetails</Role>
      <ShortName>NOTES PAYABLE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureNotesPayable</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>40901 - Disclosure - LOAN PAYABLE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureLoanPayableDetails</Role>
      <ShortName>LOAN PAYABLE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureLoanPayable</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>41001 - Disclosure - RELATED PARTY TRANSACTIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureRelatedPartyTransactionsDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureRelatedPartyTransactions</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>41101 - Disclosure - STOCKHOLDERS' DEFICIENCY - Standby Equity Distribution Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureStockholdersDeficiencyStandbyEquityDistributionAgreementDetails</Role>
      <ShortName>STOCKHOLDERS' DEFICIENCY - Standby Equity Distribution Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>41102 - Disclosure - STOCKHOLDERS' DEFICIENCY - Stock-Based Compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureStockholdersDeficiencyStockBasedCompensationDetails</Role>
      <ShortName>STOCKHOLDERS' DEFICIENCY - Stock-Based Compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>41103 - Disclosure - STOCKHOLDERS' DEFICIENCY - Stock-Based Compensation Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureStockholdersDeficiencyStockBasedCompensationExpenseDetails</Role>
      <ShortName>STOCKHOLDERS' DEFICIENCY - Stock-Based Compensation Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>41201 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureCommitmentsAndContingenciesDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="kutg-20200930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>41301 - Disclosure - SUBSEQUENT EVENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://kthightechmarketinginc.com/role/DisclosureSubsequentEventsDetails</Role>
      <ShortName>SUBSEQUENT EVENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://kthightechmarketinginc.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>45</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>kutg-20200930.xml</File>
    <File>kutg-20200930.xsd</File>
    <File>kutg-20200930_cal.xml</File>
    <File>kutg-20200930_def.xml</File>
    <File>kutg-20200930_lab.xml</File>
    <File>kutg-20200930_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
