<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.1.1.u2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>249</ContextCount>
  <ElementCount>391</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>49</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Condensed Interim Consolidated Balance Sheets (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Condensed Interim Consolidated Balance Sheets (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Condensed Interim Consolidated Balance Sheets (Unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Condensed Interim Consolidated Balance Sheets (Unaudited) (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Condensed Interim Consolidated Statements of Operations Unaudited</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Condensed Interim Consolidated Statements of Operations Unaudited</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Condensed Interim Consolidated Statements of Operations Unaudited (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConsolidatedIncomeStatement_Parentheticals</Role>
      <ShortName>Condensed Interim Consolidated Statements of Operations Unaudited (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - Condensed Consolidated Statements of Changes in Shareholders??? Equity (Deficit) Unaudited</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ShareholdersEquityType2or3</Role>
      <ShortName>Condensed Consolidated Statements of Changes in Shareholders??? Equity (Deficit) Unaudited</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Statement - Condensed Interim Consolidated Statements of Cash Flows Unaudited</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Condensed Interim Consolidated Statements of Cash Flows Unaudited</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Organization and Nature of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/OrganizationandNatureofBusiness</Role>
      <ShortName>Organization and Nature of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Initial Public Offering</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/InitialPublicOffering</Role>
      <ShortName>Initial Public Offering</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Private Placement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/PrivatePlacement</Role>
      <ShortName>Private Placement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Shareholders??? Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ShareholdersEquityDeficit</Role>
      <ShortName>Shareholders??? Equity (Deficit)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/FairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Going Concern and Liquidity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/GoingConcernandLiquidity</Role>
      <ShortName>Going Concern and Liquidity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Balance Sheet Components</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/BalanceSheetComponents</Role>
      <ShortName>Balance Sheet Components</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Promissory Note</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/PromissoryNote</Role>
      <ShortName>Promissory Note</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Convertible Promissory Notes</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConvertiblePromissoryNotes</Role>
      <ShortName>Convertible Promissory Notes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Convertible Notes Payable</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConvertibleNotesPayable</Role>
      <ShortName>Convertible Notes Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Advances from Shareholder</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/AdvancesfromShareholder</Role>
      <ShortName>Advances from Shareholder</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>024 - Disclosure - Term Loan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/TermLoan</Role>
      <ShortName>Term Loan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>025 - Disclosure - Common Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/CommonStock</Role>
      <ShortName>Common Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>026 - Disclosure - Stock-based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/StockbasedCompensation</Role>
      <ShortName>Stock-based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>027 - Disclosure - Net Income (Loss) per Share Attributable to Common Stockholders</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/NetIncomeLossperShareAttributabletoCommonStockholders</Role>
      <ShortName>Net Income (Loss) per Share Attributable to Common Stockholders</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>028 - Disclosure - Grants and Subsidies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/GrantsandSubsidies</Role>
      <ShortName>Grants and Subsidies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>996000 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPolicies</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>996001 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPolicies</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>996002 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurements</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>996003 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/IncomeTaxes</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>996004 - Disclosure - Balance Sheet Components (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/BalanceSheetComponentsTables</Role>
      <ShortName>Balance Sheet Components (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/BalanceSheetComponents</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>996005 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/Leases</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>996006 - Disclosure - Convertible Promissory Notes (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConvertiblePromissoryNotesTables</Role>
      <ShortName>Convertible Promissory Notes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/ConvertiblePromissoryNotes</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>996007 - Disclosure - Stock-based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/StockbasedCompensationTables</Role>
      <ShortName>Stock-based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/StockbasedCompensation</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>996008 - Disclosure - Net Income (Loss) per Share Attributable to Common Stockholders (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/NetIncomeLossperShareAttributabletoCommonStockholdersTables</Role>
      <ShortName>Net Income (Loss) per Share Attributable to Common Stockholders (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/NetIncomeLossperShareAttributabletoCommonStockholders</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>996009 - Disclosure - Organization and Nature of Business (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/OrganizationandNatureofBusinessDetails</Role>
      <ShortName>Organization and Nature of Business (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/OrganizationandNatureofBusiness</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>996010 - Disclosure - Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPoliciesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>996011 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of Class A Ordinary Shares Reflected in the Unaudited Condensed Consolidated Balance Sheet is Reconciled</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofClassAOrdinarySharesReflectedintheUnauditedCondensedConsolidatedBalanceSheetisReconciledTable</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of Class A Ordinary Shares Reflected in the Unaudited Condensed Consolidated Balance Sheet is Reconciled</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>996012 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of Basic and Diluted Net Income (Loss) Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofBasicandDilutedNetIncomeLossPerShareTable</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of Basic and Diluted Net Income (Loss) Per Share</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>996013 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of Basic and Diluted Net Income (Loss) Per Share (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofBasicandDilutedNetIncomeLossPerShareTable_Parentheticals</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of Basic and Diluted Net Income (Loss) Per Share (Parentheticals)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>996014 - Disclosure - Initial Public Offering (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/InitialPublicOfferingDetails</Role>
      <ShortName>Initial Public Offering (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/InitialPublicOffering</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>996015 - Disclosure - Private Placement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/PrivatePlacementDetails</Role>
      <ShortName>Private Placement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/PrivatePlacement</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>996016 - Disclosure - Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/RelatedPartyTransactions</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>996017 - Disclosure - Commitments and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/CommitmentsandContingenciesDetails</Role>
      <ShortName>Commitments and Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/CommitmentsandContingencies</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>996018 - Disclosure - Shareholders??? Equity (Deficit) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ShareholdersEquityDeficitDetails</Role>
      <ShortName>Shareholders??? Equity (Deficit) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/ShareholdersEquityDeficit</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>996019 - Disclosure - Fair Value Measurements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/FairValueMeasurementsDetails</Role>
      <ShortName>Fair Value Measurements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>996020 - Disclosure - Fair Value Measurements (Details) - Schedule of Fair Value Hierarchy of the Valuation Inputs the Company Utilized to Determine such Fair Value</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofFairValueHierarchyoftheValuationInputstheCompanyUtilizedtoDeterminesuchFairValueTable</Role>
      <ShortName>Fair Value Measurements (Details) - Schedule of Fair Value Hierarchy of the Valuation Inputs the Company Utilized to Determine such Fair Value</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>996021 - Disclosure - Fair Value Measurements (Details) - Schedule of Level 3 Fair Value Measurements Inputs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofLevel3FairValueMeasurementsInputsTable</Role>
      <ShortName>Fair Value Measurements (Details) - Schedule of Level 3 Fair Value Measurements Inputs</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>996022 - Disclosure - Fair Value Measurements (Details) - Schedule of Fair Value of the Assets and Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofFairValueoftheAssetsandLiabilitiesTable</Role>
      <ShortName>Fair Value Measurements (Details) - Schedule of Fair Value of the Assets and Liabilities</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>996023 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/IncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/IncomeTaxesTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>996024 - Disclosure - Income Taxes (Details) - Schedule of Net Deferred Tax Assets (Liabilities)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofNetDeferredTaxAssetsLiabilitiesTable</Role>
      <ShortName>Income Taxes (Details) - Schedule of Net Deferred Tax Assets (Liabilities)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/IncomeTaxesTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>996025 - Disclosure - Income Taxes (Details) - Schedule of Income Tax Provision</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofIncomeTaxProvisionTable</Role>
      <ShortName>Income Taxes (Details) - Schedule of Income Tax Provision</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/IncomeTaxesTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>996026 - Disclosure - Income Taxes (Details) - Schedule of Reconciliation of Federal Income Tax Rate</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofReconciliationofFederalIncomeTaxRateTable</Role>
      <ShortName>Income Taxes (Details) - Schedule of Reconciliation of Federal Income Tax Rate</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/IncomeTaxesTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>996027 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/SubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SubsequentEvents</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>996028 - Disclosure - Going Concern and Liquidity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/GoingConcernandLiquidityDetails</Role>
      <ShortName>Going Concern and Liquidity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/GoingConcernandLiquidity</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>996029 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of Forward Purchase Agreement of Accounts Payable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofForwardPurchaseAgreementofAccountsPayableTable</Role>
      <ShortName>Summary of Significant Accounting Policies (Details) - Schedule of Forward Purchase Agreement of Accounts Payable</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/SummaryofSignificantAccountingPoliciesTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>996030 - Disclosure - Balance Sheet Components (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/BalanceSheetComponentsDetails</Role>
      <ShortName>Balance Sheet Components (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/BalanceSheetComponentsTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>996031 - Disclosure - Balance Sheet Components (Details) - Schedule of Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofPropertyandEquipmentNetTable</Role>
      <ShortName>Balance Sheet Components (Details) - Schedule of Property and Equipment, Net</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/BalanceSheetComponentsTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>996032 - Disclosure - Balance Sheet Components (Details) - Schedule of Prepaid Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofPrepaidExpensesTable</Role>
      <ShortName>Balance Sheet Components (Details) - Schedule of Prepaid Expenses</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/BalanceSheetComponentsTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>996033 - Disclosure - Balance Sheet Components (Details) - Schedule of Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofAccruedExpensesTable</Role>
      <ShortName>Balance Sheet Components (Details) - Schedule of Accrued Expenses</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/BalanceSheetComponentsTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996034 - Disclosure - Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/LeasesDetails</Role>
      <ShortName>Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/LeasesTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996035 - Disclosure - Leases (Details) - Schedule of Lease Costs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofLeaseCostsTable</Role>
      <ShortName>Leases (Details) - Schedule of Lease Costs</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/LeasesTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996036 - Disclosure - Leases (Details) - Schedule of Weighted-Average Remaining Lease Term and Discount Rate</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofWeightedAverageRemainingLeaseTermandDiscountRateTable</Role>
      <ShortName>Leases (Details) - Schedule of Weighted-Average Remaining Lease Term and Discount Rate</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/LeasesTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996037 - Disclosure - Leases (Details) - Schedule of Minimum Aggregate Future Obligations Non-cancellable Operating Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofMinimumAggregateFutureObligationsNoncancellableOperatingLeasesTable</Role>
      <ShortName>Leases (Details) - Schedule of Minimum Aggregate Future Obligations Non-cancellable Operating Leases</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/LeasesTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996038 - Disclosure - Promissory Note (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/PromissoryNoteDetails</Role>
      <ShortName>Promissory Note (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/PromissoryNote</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>996039 - Disclosure - Convertible Promissory Notes (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConvertiblePromissoryNotesDetails</Role>
      <ShortName>Convertible Promissory Notes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/ConvertiblePromissoryNotesTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>996040 - Disclosure - Convertible Promissory Notes (Details) - Schedule of Convertible Promissory Notes</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofConvertiblePromissoryNotesTable</Role>
      <ShortName>Convertible Promissory Notes (Details) - Schedule of Convertible Promissory Notes</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/ConvertiblePromissoryNotesTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>996041 - Disclosure - Convertible Notes Payable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.horizonaircraft.com/role/ConvertibleNotesPayableDetails</Role>
      <ShortName>Convertible Notes Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/ConvertibleNotesPayable</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>996042 - Disclosure - Advances from Shareholder (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/AdvancesfromShareholderDetails</Role>
      <ShortName>Advances from Shareholder (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/AdvancesfromShareholder</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>996043 - Disclosure - Term Loan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/TermLoanDetails</Role>
      <ShortName>Term Loan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/TermLoan</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>996044 - Disclosure - Fair Value Measurements (Details) - Schedule of Fair Value Hierarchy of the Valuation Inputs the Company Utilized to Determine such Fair Value</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofFairValueHierarchyoftheValuationInputstheCompanyUtilizedtoDeterminesuchFairValueTable0</Role>
      <ShortName>Fair Value Measurements (Details) - Schedule of Fair Value Hierarchy of the Valuation Inputs the Company Utilized to Determine such Fair Value</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>996045 - Disclosure - Fair Value Measurements (Details) - Schedule of Level 3 Fair Value Measurements Inputs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofLevel3FairValueMeasurementsInputsTable0</Role>
      <ShortName>Fair Value Measurements (Details) - Schedule of Level 3 Fair Value Measurements Inputs</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>996046 - Disclosure - Fair Value Measurements (Details) - Schedule of Fair Value of the Assets and Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofFairValueoftheAssetsandLiabilitiesTable0</Role>
      <ShortName>Fair Value Measurements (Details) - Schedule of Fair Value of the Assets and Liabilities</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>996047 - Disclosure - Common Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/CommonStockDetails</Role>
      <ShortName>Common Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/CommonStock</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>996048 - Disclosure - Stock-based Compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/StockbasedCompensationDetails</Role>
      <ShortName>Stock-based Compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/StockbasedCompensationTables</ParentRole>
      <Position>78</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>996049 - Disclosure - Stock-based Compensation (Details) - Schedule of Fair Value of Stock Options</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofFairValueofStockOptionsTable</Role>
      <ShortName>Stock-based Compensation (Details) - Schedule of Fair Value of Stock Options</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/StockbasedCompensationTables</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>996050 - Disclosure - Stock-based Compensation (Details) - Schedule of Stock Option Activity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofStockOptionActivityTable</Role>
      <ShortName>Stock-based Compensation (Details) - Schedule of Stock Option Activity</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/StockbasedCompensationTables</ParentRole>
      <Position>80</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>996051 - Disclosure - Net Income (Loss) per Share Attributable to Common Stockholders (Details) - Schedule of Basic and Diluted Loss per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofBasicandDilutedLossperShareTable</Role>
      <ShortName>Net Income (Loss) per Share Attributable to Common Stockholders (Details) - Schedule of Basic and Diluted Loss per Share</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/NetIncomeLossperShareAttributabletoCommonStockholdersTables</ParentRole>
      <Position>81</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>996052 - Disclosure - Net Income (Loss) per Share Attributable to Common Stockholders (Details) - Schedule of Basic and Diluted Loss per Share (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/ScheduleofBasicandDilutedLossperShareTable_Parentheticals</Role>
      <ShortName>Net Income (Loss) per Share Attributable to Common Stockholders (Details) - Schedule of Basic and Diluted Loss per Share (Parentheticals)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/NetIncomeLossperShareAttributabletoCommonStockholdersTables</ParentRole>
      <Position>82</Position>
    </Report>
    <Report instance="ea0208109-s1a1_newhorizon.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>996053 - Disclosure - Grants and Subsidies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.horizonaircraft.com/role/GrantsandSubsidiesDetails</Role>
      <ShortName>Grants and Subsidies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.horizonaircraft.com/role/GrantsandSubsidies</ParentRole>
      <Position>83</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="S-1/A" isDefinitelyFs="true" isUsgaap="true" original="ea0208109-s1a1_newhorizon.htm">ea0208109-s1a1_newhorizon.htm</File>
    <File>hovr-20240229.xsd</File>
    <File>hovr-20240229_cal.xml</File>
    <File>hovr-20240229_def.xml</File>
    <File>hovr-20240229_lab.xml</File>
    <File>hovr-20240229_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>image_001.jpg</File>
    <File>image_002.jpg</File>
    <File>image_003.jpg</File>
    <File>image_004.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="993">http://fasb.org/us-gaap/2023</BaseTaxonomy>
    <BaseTaxonomy items="10">http://xbrl.sec.gov/dei/2023</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
