<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>174</ContextCount>
  <ElementCount>367</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>73</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>9</UnitCount>
  <MyReports>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995200090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995200100 - Statement - Condensed Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/StatementCondensedBalanceSheets</Role>
      <ShortName>Condensed Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995200105 - Statement - Condensed Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/StatementCondensedBalanceSheetsParenthetical</Role>
      <ShortName>Condensed Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995200200 - Statement - Condensed Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/StatementCondensedStatementsOfOperations</Role>
      <ShortName>Condensed Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>995200300 - Statement - Condensed Statements of Changes in Stockholders' Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/StatementCondensedStatementsOfChangesInStockholdersEquityDeficit</Role>
      <ShortName>Condensed Statements of Changes in Stockholders' Equity (Deficit)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>995200305 - Statement - Condensed Statements of Changes in Stockholders' Equity (Deficit) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/StatementCondensedStatementsOfChangesInStockholdersEquityDeficitParenthetical</Role>
      <ShortName>Condensed Statements of Changes in Stockholders' Equity (Deficit) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995200400 - Statement - Condensed Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/StatementCondensedStatementsOfCashFlows</Role>
      <ShortName>Condensed Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995210101 - Disclosure - Business Organization, Nature of Operations and Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureBusinessOrganizationNatureOfOperationsAndBasisOfPresentation</Role>
      <ShortName>Business Organization, Nature of Operations and Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995210201 - Disclosure - Management's Liquidity Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureManagementSLiquidityPlans</Role>
      <ShortName>Management's Liquidity Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995210301 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995210401 - Disclosure - Net Income (Loss) Per Share of Common Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNetIncomeLossPerShareOfCommonStock</Role>
      <ShortName>Net Income (Loss) Per Share of Common Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995210501 - Disclosure - Prepaid Expenses and Other Current Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosurePrepaidExpensesAndOtherCurrentAssets</Role>
      <ShortName>Prepaid Expenses and Other Current Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995210601 - Disclosure - Digital Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssets</Role>
      <ShortName>Digital Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995210701 - Disclosure - Accrued Expenses and Other Current Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities</Role>
      <ShortName>Accrued Expenses and Other Current Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995210801 - Disclosure - Notes Payable</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNotesPayable</Role>
      <ShortName>Notes Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995210901 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995211001 - Disclosure - Income Tax</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureIncomeTax</Role>
      <ShortName>Income Tax</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995211101 - Disclosure - Stockholders' Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficit</Role>
      <ShortName>Stockholders' Equity (Deficit)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995211201 - Disclosure - Segment Reporting</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSegmentReporting</Role>
      <ShortName>Segment Reporting</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995211301 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>99920302 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>99930303 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>99930403 - Disclosure - Net Income (Loss) Per Share of Common Stock (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNetIncomeLossPerShareOfCommonStockTables</Role>
      <ShortName>Net Income (Loss) Per Share of Common Stock (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureNetIncomeLossPerShareOfCommonStock</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>99930503 - Disclosure - Prepaid Expenses and Other Current Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosurePrepaidExpensesAndOtherCurrentAssetsTables</Role>
      <ShortName>Prepaid Expenses and Other Current Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosurePrepaidExpensesAndOtherCurrentAssets</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>99930603 - Disclosure - Digital Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsTables</Role>
      <ShortName>Digital Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureDigitalAssets</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>99930703 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables</Role>
      <ShortName>Accrued Expenses and Other Current Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilities</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>99930803 - Disclosure - Notes Payable (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNotesPayableTables</Role>
      <ShortName>Notes Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureNotesPayable</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>99931103 - Disclosure - Stockholders' Equity (Deficit) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</Role>
      <ShortName>Stockholders' Equity (Deficit) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficit</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>99931203 - Disclosure - Segment Reporting (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSegmentReportingTables</Role>
      <ShortName>Segment Reporting (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureSegmentReporting</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>99940101 - Disclosure - Business Organization, Nature of Operations and Basis of Presentation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureBusinessOrganizationNatureOfOperationsAndBasisOfPresentationDetails</Role>
      <ShortName>Business Organization, Nature of Operations and Basis of Presentation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureBusinessOrganizationNatureOfOperationsAndBasisOfPresentation</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>99940201 - Disclosure - Management's Liquidity Plans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureManagementSLiquidityPlansDetails</Role>
      <ShortName>Management's Liquidity Plans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureManagementSLiquidityPlans</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>99940301 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>99940302 - Disclosure - Summary of Significant Accounting Policies - Fair Value Measurement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPoliciesFairValueMeasurementDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Fair Value Measurement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>99940303 - Disclosure - Summary of Significant Accounting Policies - HyperLend Private Pool Participation Agreement and Revenue-Sharing Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPoliciesHyperlendPrivatePoolParticipationAgreementAndRevenueSharingAgreementDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - HyperLend Private Pool Participation Agreement and Revenue-Sharing Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>99940304 - Disclosure - Summary of Significant Accounting Policies - Digital Intangible Assets Receivable and Credit Loss Allowance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDigitalIntangibleAssetsReceivableAndCreditLossAllowanceDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Digital Intangible Assets Receivable and Credit Loss Allowance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>99940401 - Disclosure - Net Income (Loss) Per Share of Common Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNetIncomeLossPerShareOfCommonStockDetails</Role>
      <ShortName>Net Income (Loss) Per Share of Common Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureNetIncomeLossPerShareOfCommonStockTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>99940402 - Disclosure - Net Income (Loss) Per Share of Common Stock - Calculation of Weighted Average Dilutive Shares of Common Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNetIncomeLossPerShareOfCommonStockCalculationOfWeightedAverageDilutiveSharesOfCommonStockDetails</Role>
      <ShortName>Net Income (Loss) Per Share of Common Stock - Calculation of Weighted Average Dilutive Shares of Common Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureNetIncomeLossPerShareOfCommonStockTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>99940501 - Disclosure - Prepaid Expenses and Other Current Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosurePrepaidExpensesAndOtherCurrentAssetsDetails</Role>
      <ShortName>Prepaid Expenses and Other Current Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosurePrepaidExpensesAndOtherCurrentAssetsTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>99940601 - Disclosure - Digital Assets - Native Staking (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsNativeStakingDetails</Role>
      <ShortName>Digital Assets - Native Staking (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>99940602 - Disclosure - Digital Assets - HyperLend Private Pool Participation Agreement and Revenue-Sharing Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsHyperlendPrivatePoolParticipationAgreementAndRevenueSharingAgreementDetails</Role>
      <ShortName>Digital Assets - HyperLend Private Pool Participation Agreement and Revenue-Sharing Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>99940603 - Disclosure - Digital Assets - Digital Assets Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsDigitalAssetsReceivableDetails</Role>
      <ShortName>Digital Assets - Digital Assets Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>99940604 - Disclosure - Digital Assets - OTC HYPE Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsOtcHypeOptionsDetails</Role>
      <ShortName>Digital Assets - OTC HYPE Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>99940605 - Disclosure - Digital Assets - Hyperion Rysk Vault Shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsHyperionRyskVaultSharesDetails</Role>
      <ShortName>Digital Assets - Hyperion Rysk Vault Shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>99940606 - Disclosure - Digital Assets - Digital Intangible Assets Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsDigitalIntangibleAssetsReceivableDetails</Role>
      <ShortName>Digital Assets - Digital Intangible Assets Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>99940607 - Disclosure - Digital Assets - Digital Asset Reconciliation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsDigitalAssetReconciliationDetails</Role>
      <ShortName>Digital Assets - Digital Asset Reconciliation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>99940608 - Disclosure - Digital Assets - Digital Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsDigitalAssetsDetails</Role>
      <ShortName>Digital Assets - Digital Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>99940609 - Disclosure - Digital Assets - Digital Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureDigitalAssetsDigitalIntangibleAssetsDetails</Role>
      <ShortName>Digital Assets - Digital Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>99940701 - Disclosure - Accrued Expenses and Other Current Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesDetails</Role>
      <ShortName>Accrued Expenses and Other Current Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>99940801 - Disclosure - Notes Payable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNotesPayableDetails</Role>
      <ShortName>Notes Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureNotesPayableTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>99940802 - Disclosure - Notes Payable - Avenue Loan maturities (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNotesPayableAvenueLoanMaturitiesDetails</Role>
      <ShortName>Notes Payable - Avenue Loan maturities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>99940803 - Disclosure - Notes Payable - FIRST Insurance Funding Loan (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureNotesPayableFirstInsuranceFundingLoanDetails</Role>
      <ShortName>Notes Payable - FIRST Insurance Funding Loan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>99940901 - Disclosure - Commitments and Contingencies - Hype Asset Use Service Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureCommitmentsAndContingenciesHypeAssetUseServiceAgreementDetails</Role>
      <ShortName>Commitments and Contingencies - Hype Asset Use Service Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>99940902 - Disclosure - Commitments and Contingencies - HyperLend Revenue-Sharing Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureCommitmentsAndContingenciesHyperlendRevenueSharingAgreementDetails</Role>
      <ShortName>Commitments and Contingencies - HyperLend Revenue-Sharing Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>99940903 - Disclosure - Commitments and Contingencies - Joint Validator Operators' Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureCommitmentsAndContingenciesJointValidatorOperatorsAgreementDetails</Role>
      <ShortName>Commitments and Contingencies - Joint Validator Operators' Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>99941001 - Disclosure - Income Tax (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureIncomeTaxDetails</Role>
      <ShortName>Income Tax (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureIncomeTax</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>99941101 - Disclosure - Stockholders' Equity (Deficit) - Authorized Capital (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitAuthorizedCapitalDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - Authorized Capital (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>99941102 - Disclosure - Stockholders' Equity (Deficit) - Common Stock Issuances (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitCommonStockIssuancesDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - Common Stock Issuances (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>99941103 - Disclosure - Stockholders' Equity (Deficit) - At-The-Market Program (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitAtMarketProgramDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - At-The-Market Program (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>99941104 - Disclosure - Stockholders' Equity (Deficit) - Series A Preferred Stock Securities Purchase Agreements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitSeriesPreferredStockSecuritiesPurchaseAgreementsDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - Series A Preferred Stock Securities Purchase Agreements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>99941105 - Disclosure - Stockholders' Equity (Deficit) - Stock-Based Compensation Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitStockBasedCompensationExpenseDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - Stock-Based Compensation Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>99941106 - Disclosure - Stockholders' Equity (Deficit) - Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitWarrantsDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>99941107 - Disclosure - Stockholders' Equity (Deficit) - Restricted stock units activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitRestrictedStockUnitsActivityDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - Restricted stock units activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>99941108 - Disclosure - Stockholders' Equity (Deficit) - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitAdditionalInformationDetails</Role>
      <ShortName>Stockholders' Equity (Deficit) - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureStockholdersEquityDeficitTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>99941201 - Disclosure - Segment Reporting (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSegmentReportingDetails</Role>
      <ShortName>Segment Reporting (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureSegmentReportingTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>99941202 - Disclosure - Segment Reporting - Significant expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSegmentReportingSignificantExpensesDetails</Role>
      <ShortName>Segment Reporting - Significant expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>99941203 - Disclosure - Segment Reporting - Segment assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSegmentReportingSegmentAssetsDetails</Role>
      <ShortName>Segment Reporting - Segment assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="hypd-20260331x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>99941301 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.eyenoviabio.com/role/DisclosureSubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.eyenoviabio.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>69</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>hypd-20260331.xsd</File>
    <File>hypd-20260331_cal.xml</File>
    <File>hypd-20260331_def.xml</File>
    <File>hypd-20260331_lab.xml</File>
    <File>hypd-20260331_pre.xml</File>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="hypd-20260331x10q.htm">hypd-20260331x10q.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="517">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
