<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.25.4</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>303</ContextCount>
  <ElementCount>355</ElementCount>
  <EntityCount>2</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>72</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>9</UnitCount>
  <MyReports>
    <Report instance="ea0269161-02.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.estrellabio.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Unaudited Condensed Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Unaudited Condensed Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Unaudited Condensed Consolidated Balance Sheets (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Unaudited Condensed Consolidated Balance Sheets (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Unaudited Condensed Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Unaudited Condensed Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Unaudited Condensed Consolidated Statements of Changes in Stockholders??? (Deficit) Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ShareholdersEquityType2or3</Role>
      <ShortName>Unaudited Condensed Consolidated Statements of Changes in Stockholders??? (Deficit) Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - Unaudited Condensed Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Unaudited Condensed Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Disclosure - Organization and Business Operation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/OrganizationandBusinessOperation</Role>
      <ShortName>Organization and Business Operation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SignificantAccountingPolicies</Role>
      <ShortName>Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Other Payables and Accrued Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/OtherPayablesandAccruedLiabilities</Role>
      <ShortName>Other Payables and Accrued Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Preferred Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/PreferredStock</Role>
      <ShortName>Preferred Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Stockholders??? Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/StockholdersEquityDeficit</Role>
      <ShortName>Stockholders??? Equity (Deficit)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Stock Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/StockBasedCompensation</Role>
      <ShortName>Stock Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Segment Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SegmentInformation</Role>
      <ShortName>Segment Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Reverse Recapitalization</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ReverseRecapitalization</Role>
      <ShortName>Reverse Recapitalization</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Cash Held in Trust Account</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/CashHeldinTrustAccount</Role>
      <ShortName>Cash Held in Trust Account</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Extension Note Receivable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ExtensionNoteReceivable</Role>
      <ShortName>Extension Note Receivable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Stock Redemption Payable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/StockRedemptionPayable</Role>
      <ShortName>Stock Redemption Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Promissory Note</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/PromissoryNote</Role>
      <ShortName>Promissory Note</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Transition Period Comparative Data</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/TransitionPeriodComparativeData</Role>
      <ShortName>Transition Period Comparative Data</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>996000 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>996001 - Disclosure - Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SignificantAccountingPoliciesTables</Role>
      <ShortName>Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>996002 - Disclosure - Other Payables and Accrued Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/OtherPayablesandAccruedLiabilitiesTables</Role>
      <ShortName>Other Payables and Accrued Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/OtherPayablesandAccruedLiabilities</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>996003 - Disclosure - Stockholders??? Equity (Deficit) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/StockholdersEquityDeficitTables</Role>
      <ShortName>Stockholders??? Equity (Deficit) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/StockholdersEquityDeficit</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>996004 - Disclosure - Stock Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/StockBasedCompensationTables</Role>
      <ShortName>Stock Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/StockBasedCompensation</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>996005 - Disclosure - Segment Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SegmentInformationTables</Role>
      <ShortName>Segment Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/SegmentInformation</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>996006 - Disclosure - Reverse Recapitalization (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ReverseRecapitalizationTables</Role>
      <ShortName>Reverse Recapitalization (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/ReverseRecapitalization</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>996007 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/IncomeTaxes</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>996008 - Disclosure - Transition Period Comparative Data (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/TransitionPeriodComparativeDataTables</Role>
      <ShortName>Transition Period Comparative Data (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/TransitionPeriodComparativeData</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>996009 - Disclosure - Organization and Business Operation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/OrganizationandBusinessOperationDetails</Role>
      <ShortName>Organization and Business Operation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/OrganizationandBusinessOperation</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>996010 - Disclosure - Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SignificantAccountingPoliciesDetails</Role>
      <ShortName>Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>996011 - Disclosure - Significant Accounting Policies - Schedule of Potential Common Stock Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofPotentialCommonStockOutstandingTable</Role>
      <ShortName>Significant Accounting Policies - Schedule of Potential Common Stock Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>996012 - Disclosure - Significant Accounting Policies - Schedule of Fair Value Hierarchy Our Financial Asset and Liability that were Accounted for at Fair Value on a Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofFairValueHierarchyOurFinancialAssetandLiabilitythatwereAccountedforatFairValueonaRecurringBasisTable</Role>
      <ShortName>Significant Accounting Policies - Schedule of Fair Value Hierarchy Our Financial Asset and Liability that were Accounted for at Fair Value on a Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>996013 - Disclosure - Significant Accounting Policies - Schedule of Financial Liability Measured at Fair Value (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofFinancialLiabilityMeasuredatFairValueTable</Role>
      <ShortName>Significant Accounting Policies - Schedule of Financial Liability Measured at Fair Value (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>996014 - Disclosure - Other Payables and Accrued Liabilities - Schedule of Other Payables and Accrued Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofOtherPayablesandAccruedLiabilitiesTable</Role>
      <ShortName>Other Payables and Accrued Liabilities - Schedule of Other Payables and Accrued Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>996015 - Disclosure - Commitments and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/CommitmentsandContingenciesDetails</Role>
      <ShortName>Commitments and Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/CommitmentsandContingencies</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>996016 - Disclosure - Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/RelatedPartyTransactions</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>996017 - Disclosure - Preferred Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/PreferredStockDetails</Role>
      <ShortName>Preferred Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/PreferredStock</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>996018 - Disclosure - Stockholders??? Equity (Deficit) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/StockholdersEquityDeficitDetails</Role>
      <ShortName>Stockholders??? Equity (Deficit) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/StockholdersEquityDeficitTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>996019 - Disclosure - Stock Based Compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/StockBasedCompensationDetails</Role>
      <ShortName>Stock Based Compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/StockBasedCompensationTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>996020 - Disclosure - Stock Based Compensation - Schedule of Breakdown of Stock-Based Compensation by Categories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofBreakdownofStockBasedCompensationbyCategoriesTable</Role>
      <ShortName>Stock Based Compensation - Schedule of Breakdown of Stock-Based Compensation by Categories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>996021 - Disclosure - Stock Based Compensation - Schedule of Stock Option Activities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofStockOptionActivitiesTable</Role>
      <ShortName>Stock Based Compensation - Schedule of Stock Option Activities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>996022 - Disclosure - Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/LeasesDetails</Role>
      <ShortName>Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/Leases</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>996023 - Disclosure - Segment Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SegmentInformationDetails</Role>
      <ShortName>Segment Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/SegmentInformationTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>996024 - Disclosure - Segment Information - Schedule of Significant Revenue and Expense Categories of the Company???s Single Operating Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofSignificantRevenueandExpenseCategoriesoftheCompanysSingleOperatingSegmentTable</Role>
      <ShortName>Segment Information - Schedule of Significant Revenue and Expense Categories of the Company???s Single Operating Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>996025 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/SubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/SubsequentEvents</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>996026 - Disclosure - Significant Accounting Policies - Schedule of Potential Common Stock Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofPotentialCommonStockOutstandingTable0</Role>
      <ShortName>Significant Accounting Policies - Schedule of Potential Common Stock Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>996027 - Disclosure - Reverse Recapitalization (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ReverseRecapitalizationDetails</Role>
      <ShortName>Reverse Recapitalization (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/ReverseRecapitalizationTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>996028 - Disclosure - Reverse Recapitalization - Schedule of Common Stock Issued and Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofCommonStockIssuedandOutstandingTable</Role>
      <ShortName>Reverse Recapitalization - Schedule of Common Stock Issued and Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>996029 - Disclosure - Reverse Recapitalization - Schedule of Reverse Recapitalization to the Statements of Cash Flows and the Changes in Shareholders??? Equity (deficit) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofReverseRecapitalizationtotheStatementsofCashFlowsandtheChangesinShareholdersEquitydeficitTable</Role>
      <ShortName>Reverse Recapitalization - Schedule of Reverse Recapitalization to the Statements of Cash Flows and the Changes in Shareholders??? Equity (deficit) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>996030 - Disclosure - Extension Note Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ExtensionNoteReceivableDetails</Role>
      <ShortName>Extension Note Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/ExtensionNoteReceivable</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>996031 - Disclosure - Other Payables and Accrued Liabilities - Schedule of Other Payables and Accrued Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofOtherPayablesandAccruedLiabilitiesTable0</Role>
      <ShortName>Other Payables and Accrued Liabilities - Schedule of Other Payables and Accrued Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>996032 - Disclosure - Promissory Note (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/PromissoryNoteDetails</Role>
      <ShortName>Promissory Note (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/PromissoryNote</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>996033 - Disclosure - Stockholders??? Equity (Deficit) - Schedule of Ordinary Shares Issued Upon the Reverse Recapitalization (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofOrdinarySharesIssuedUpontheReverseRecapitalizationTable</Role>
      <ShortName>Stockholders??? Equity (Deficit) - Schedule of Ordinary Shares Issued Upon the Reverse Recapitalization (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/StockholdersEquityDeficitTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>996034 - Disclosure - Stock Based Compensation - Schedule of Breakdown of Stock-Based Compensation by Categories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofBreakdownofStockBasedCompensationbyCategoriesTable0</Role>
      <ShortName>Stock Based Compensation - Schedule of Breakdown of Stock-Based Compensation by Categories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>996035 - Disclosure - Stock Based Compensation - Schedule of Estimated the Fair Value of the Stock Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofEstimatedtheFairValueoftheStockOptionsTable</Role>
      <ShortName>Stock Based Compensation - Schedule of Estimated the Fair Value of the Stock Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>996036 - Disclosure - Stock Based Compensation - Schedule of Stock Option Activities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofStockOptionActivitiesTable0</Role>
      <ShortName>Stock Based Compensation - Schedule of Stock Option Activities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>996037 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/IncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.estrellabio.com/role/IncomeTaxesTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>996038 - Disclosure - Income Taxes - Schedule of Provision for Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofProvisionforIncomeTaxesTable</Role>
      <ShortName>Income Taxes - Schedule of Provision for Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996039 - Disclosure - Income Taxes - Schedule of the Effective Tax Rate of the Company???s Provision for Income Taxes Differs from the Federal Statutory Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleoftheEffectiveTaxRateoftheCompanysProvisionforIncomeTaxesDiffersfromtheFederalStatutoryRateTable</Role>
      <ShortName>Income Taxes - Schedule of the Effective Tax Rate of the Company???s Provision for Income Taxes Differs from the Federal Statutory Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996040 - Disclosure - Income Taxes - Schedule of the Company???s Net Deferred Tax Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleoftheCompanysNetDeferredTaxAssetsTable</Role>
      <ShortName>Income Taxes - Schedule of the Company???s Net Deferred Tax Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996041 - Disclosure - Transition Period Comparative Data - Schedule of Statements of Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofStatementsofOperationsTable</Role>
      <ShortName>Transition Period Comparative Data - Schedule of Statements of Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="ea0269161-02.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996042 - Disclosure - Transition Period Comparative Data - Schedule of Statements of Cash Flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.estrellabio.com/role/ScheduleofStatementsofCashFlowsTable</Role>
      <ShortName>Transition Period Comparative Data - Schedule of Statements of Cash Flows (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="ea026916102ex-fee_estrella.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>995210 - Document - Submission</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ffd/role/document/submissionTable</Role>
      <ShortName>Submission</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="ea026916102ex-fee_estrella.htm">
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>995211 - Document - Offerings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ffd/role/document/feesOfferingTable</Role>
      <ShortName>Offerings</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="ea026916102ex-fee_estrella.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>995215 - Document - Fees Summary</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ffd/role/document/feesSummaryTable</Role>
      <ShortName>Fees Summary</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>70</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="ea0269161-02.htm">ea0269161-02.htm</File>
    <File>esla-20250930.xsd</File>
    <File>esla-20250930_cal.xml</File>
    <File>esla-20250930_def.xml</File>
    <File>esla-20250930_lab.xml</File>
    <File>esla-20250930_pre.xml</File>
    <File doctype="EX-FILING FEES" original="ea026916102ex-fee_estrella.htm">ea026916102ex-fee_estrella.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="2">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="1081">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="13">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="32">http://xbrl.sec.gov/ffd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
