<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>348</ContextCount>
  <ElementCount>431</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>118</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995300 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995301 - Statement - Consolidated Statements of Financial Position</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/ConsolidatedStatementsofFinancialPosition</Role>
      <ShortName>Consolidated Statements of Financial Position</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995302 - Statement - Consolidated Statements of Profit or Loss and Comprehensive Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/ConsolidatedStatementsofProfitorLossandComprehensiveLoss</Role>
      <ShortName>Consolidated Statements of Profit or Loss and Comprehensive Loss</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995303 - Statement - Consolidated Statements of Changes in Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/ConsolidatedStatementsofChangesinEquity</Role>
      <ShortName>Consolidated Statements of Changes in Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>995304 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/ConsolidatedStatementsofCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>995305 - Statement - Consolidated Statements of Cash Flows (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/ConsolidatedStatementsofCashFlowsParentheticals</Role>
      <ShortName>Consolidated Statements of Cash Flows (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995306 - Disclosure - Overview of the Company</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OverviewoftheCompany</Role>
      <ShortName>Overview of the Company</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995307 - Disclosure - Basis of Preparation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/BasisofPreparation</Role>
      <ShortName>Basis of Preparation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995308 - Disclosure - Material Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/MaterialAccountingPolicies</Role>
      <ShortName>Material Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995309 - Disclosure - Plant and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PlantandEquipmentNet</Role>
      <ShortName>Plant and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995310 - Disclosure - Right-of-Use Assets and Lease Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilities</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995311 - Disclosure - Financial Assets at Fair Value Through Profit or Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialAssetsatFairValueThroughProfitorLoss</Role>
      <ShortName>Financial Assets at Fair Value Through Profit or Loss</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995312 - Disclosure - Digital Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssets</Role>
      <ShortName>Digital Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995313 - Disclosure - Prepayments and Other Receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PrepaymentsandOtherReceivables</Role>
      <ShortName>Prepayments and Other Receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995314 - Disclosure - Cash and Cash Equivalents</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CashandCashEquivalents</Role>
      <ShortName>Cash and Cash Equivalents</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995315 - Disclosure - Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/Equity</Role>
      <ShortName>Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995316 - Disclosure - Digital Assets Payable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsPayable</Role>
      <ShortName>Digital Assets Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995317 - Disclosure - Payable to Customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PayabletoCustomers</Role>
      <ShortName>Payable to Customers</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995318 - Disclosure - Other Payables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OtherPayables</Role>
      <ShortName>Other Payables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995319 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialLiabilitiesatFairValueThroughProfitorLoss</Role>
      <ShortName>Financial Liabilities at Fair Value Through Profit or Loss</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995320 - Disclosure - Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/Revenue</Role>
      <ShortName>Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995321 - Disclosure - Cost of Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CostofIncome</Role>
      <ShortName>Cost of Income</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995322 - Disclosure - General and Administrative</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/GeneralandAdministrative</Role>
      <ShortName>General and Administrative</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995323 - Disclosure - Finance Costs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinanceCosts</Role>
      <ShortName>Finance Costs</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995324 - Disclosure - Other Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OtherIncome</Role>
      <ShortName>Other Income</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995325 - Disclosure - Income Tax Expense</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpense</Role>
      <ShortName>Income Tax Expense</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995326 - Disclosure - Operating Segment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OperatingSegment</Role>
      <ShortName>Operating Segment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995327 - Disclosure - Financial Risk Management</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagement</Role>
      <ShortName>Financial Risk Management</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995328 - Disclosure - Income (Loss) Per Share Attributable to Equity Holders of the Company</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeLossPerShareAttributabletoEquityHoldersoftheCompany</Role>
      <ShortName>Income (Loss) Per Share Attributable to Equity Holders of the Company</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995329 - Disclosure - Related Party Balances and Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RelatedPartyBalancesandTransactions</Role>
      <ShortName>Related Party Balances and Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995330 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995331 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995447 - Disclosure - Insider Trading Policies and Procedures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc</Role>
      <ShortName>Insider Trading Policies and Procedures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure</Role>
      <ShortName>Cybersecurity Risk Management and Strategy Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>996333 - Disclosure - Material Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/MaterialAccountingPoliciesPolicies</Role>
      <ShortName>Material Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/MaterialAccountingPolicies</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>996334 - Disclosure - Overview of the Company (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OverviewoftheCompanyTables</Role>
      <ShortName>Overview of the Company (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/OverviewoftheCompany</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>996335 - Disclosure - Plant and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PlantandEquipmentNetTables</Role>
      <ShortName>Plant and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/PlantandEquipmentNet</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>996336 - Disclosure - Right-of-Use Assets and Lease Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesTables</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilities</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>996337 - Disclosure - Financial Assets at Fair Value Through Profit or Loss (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialAssetsatFairValueThroughProfitorLossTables</Role>
      <ShortName>Financial Assets at Fair Value Through Profit or Loss (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/FinancialAssetsatFairValueThroughProfitorLoss</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>996338 - Disclosure - Digital Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsTables</Role>
      <ShortName>Digital Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/DigitalAssets</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>996339 - Disclosure - Prepayments and Other Receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PrepaymentsandOtherReceivablesTables</Role>
      <ShortName>Prepayments and Other Receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/PrepaymentsandOtherReceivables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>996340 - Disclosure - Cash and Cash Equivalents (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CashandCashEquivalentsTables</Role>
      <ShortName>Cash and Cash Equivalents (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/CashandCashEquivalents</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>996341 - Disclosure - Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/EquityTables</Role>
      <ShortName>Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/Equity</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>996342 - Disclosure - Digital Assets Payable (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsPayableTables</Role>
      <ShortName>Digital Assets Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsPayable</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>996343 - Disclosure - Payable to Customers (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PayabletoCustomersTables</Role>
      <ShortName>Payable to Customers (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/PayabletoCustomers</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>996344 - Disclosure - Other Payables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OtherPayablesTables</Role>
      <ShortName>Other Payables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/OtherPayables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>996345 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialLiabilitiesatFairValueThroughProfitorLossTables</Role>
      <ShortName>Financial Liabilities at Fair Value Through Profit or Loss (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/FinancialLiabilitiesatFairValueThroughProfitorLoss</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>996346 - Disclosure - Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RevenueTables</Role>
      <ShortName>Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/Revenue</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>996347 - Disclosure - Cost of Income (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CostofIncomeTables</Role>
      <ShortName>Cost of Income (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/CostofIncome</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>996348 - Disclosure - General and Administrative (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/GeneralandAdministrativeTables</Role>
      <ShortName>General and Administrative (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/GeneralandAdministrative</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>996349 - Disclosure - Finance Costs (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinanceCostsTables</Role>
      <ShortName>Finance Costs (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/FinanceCosts</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>996350 - Disclosure - Other Income (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OtherIncomeTables</Role>
      <ShortName>Other Income (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/OtherIncome</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>996351 - Disclosure - Income Tax Expense (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpenseTables</Role>
      <ShortName>Income Tax Expense (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpense</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>996352 - Disclosure - Financial Risk Management (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagementTables</Role>
      <ShortName>Financial Risk Management (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagement</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>996353 - Disclosure - Income (Loss) Per Share Attributable to Equity Holders of the Company (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeLossPerShareAttributabletoEquityHoldersoftheCompanyTables</Role>
      <ShortName>Income (Loss) Per Share Attributable to Equity Holders of the Company (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpense</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>996354 - Disclosure - Related Party Balances and Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RelatedPartyBalancesandTransactionsTables</Role>
      <ShortName>Related Party Balances and Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/RelatedPartyBalancesandTransactions</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>996355 - Disclosure - Overview of the Company (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OverviewoftheCompanyDetails</Role>
      <ShortName>Overview of the Company (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/OverviewoftheCompanyTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>996356 - Disclosure - Overview of the Company - Schedule of Subsidiaries of the Company (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OverviewoftheCompanyScheduleofSubsidiariesoftheCompanyDetails</Role>
      <ShortName>Overview of the Company - Schedule of Subsidiaries of the Company (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>996357 - Disclosure - Material Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/MaterialAccountingPoliciesDetails</Role>
      <ShortName>Material Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/MaterialAccountingPoliciesPolicies</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>996358 - Disclosure - Plant and Equipment, Net - Schedule of Plant and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PlantandEquipmentNetScheduleofPlantandEquipmentNetDetails</Role>
      <ShortName>Plant and Equipment, Net - Schedule of Plant and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>996359 - Disclosure - Right-of-Use Assets and Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesDetails</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>996360 - Disclosure - Right-of-Use Assets and Lease Liabilities - Schedule of Leases of Buildings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesScheduleofLeasesofBuildingsDetails</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities - Schedule of Leases of Buildings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>996361 - Disclosure - Right-of-Use Assets and Lease Liabilities - Schedule of Carrying Amounts of Lease Liabilities and the Movements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesScheduleofCarryingAmountsofLeaseLiabilitiesandtheMovementsDetails</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities - Schedule of Carrying Amounts of Lease Liabilities and the Movements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996362 - Disclosure - Right-of-Use Assets and Lease Liabilities - Schedule of Consolidated Statement of Financial Position (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesScheduleofConsolidatedStatementofFinancialPositionDetails</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities - Schedule of Consolidated Statement of Financial Position (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996363 - Disclosure - Right-of-Use Assets and Lease Liabilities - Schedule of Reconciliation of Liabilities arising from Financing Activities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesScheduleofReconciliationofLiabilitiesarisingfromFinancingActivitiesDetails</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities - Schedule of Reconciliation of Liabilities arising from Financing Activities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996364 - Disclosure - Right-of-Use Assets and Lease Liabilities - Schedule of Maturity Analysis of the Company’s Non-Cancellable Lease Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RightofUseAssetsandLeaseLiabilitiesScheduleofMaturityAnalysisoftheCompanysNonCancellableLeaseObligationsDetails</Role>
      <ShortName>Right-of-Use Assets and Lease Liabilities - Schedule of Maturity Analysis of the Company’s Non-Cancellable Lease Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996365 - Disclosure - Financial Assets at Fair Value Through Profit or Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialAssetsatFairValueThroughProfitorLossDetails</Role>
      <ShortName>Financial Assets at Fair Value Through Profit or Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/FinancialAssetsatFairValueThroughProfitorLossTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996366 - Disclosure - Financial Assets at Fair Value Through Profit or Loss - Schedule of Financial Assets Held on Third Party Exchange Institutions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialAssetsatFairValueThroughProfitorLossScheduleofFinancialAssetsHeldonThirdPartyExchangeInstitutionsDetails</Role>
      <ShortName>Financial Assets at Fair Value Through Profit or Loss - Schedule of Financial Assets Held on Third Party Exchange Institutions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>996367 - Disclosure - Financial Assets at Fair Value Through Profit or Loss - Schedule of Movement of Financial Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialAssetsatFairValueThroughProfitorLossScheduleofMovementofFinancialAssetsDetails</Role>
      <ShortName>Financial Assets at Fair Value Through Profit or Loss - Schedule of Movement of Financial Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>996368 - Disclosure - Digital Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsDetails</Role>
      <ShortName>Digital Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>996369 - Disclosure - Digital Assets - Schedule of Digital Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsScheduleofDigitalAssetsDetails</Role>
      <ShortName>Digital Assets - Schedule of Digital Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>996370 - Disclosure - Prepayments and Other Receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PrepaymentsandOtherReceivablesDetails</Role>
      <ShortName>Prepayments and Other Receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/PrepaymentsandOtherReceivablesTables</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>996371 - Disclosure - Prepayments and Other Receivables - Schedule of Prepayments and Other Receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PrepaymentsandOtherReceivablesScheduleofPrepaymentsandOtherReceivablesDetails</Role>
      <ShortName>Prepayments and Other Receivables - Schedule of Prepayments and Other Receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>996372 - Disclosure - Prepayments and Other Receivables -Schedule of Movements of Allowance for Expected Credit Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PrepaymentsandOtherReceivablesScheduleofMovementsofAllowanceforExpectedCreditLossDetails</Role>
      <ShortName>Prepayments and Other Receivables -Schedule of Movements of Allowance for Expected Credit Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>996373 - Disclosure - Cash and Cash Equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CashandCashEquivalentsDetails</Role>
      <ShortName>Cash and Cash Equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/CashandCashEquivalentsTables</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>996374 - Disclosure - Cash and Cash Equivalents - Schedule of Cash and Cash Equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CashandCashEquivalentsScheduleofCashandCashEquivalentsDetails</Role>
      <ShortName>Cash and Cash Equivalents - Schedule of Cash and Cash Equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>996375 - Disclosure - Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/EquityDetails</Role>
      <ShortName>Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/EquityTables</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>996376 - Disclosure - Equity - Schedule of Outstanding Share Purchase Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/EquityScheduleofOutstandingSharePurchaseWarrantsDetails</Role>
      <ShortName>Equity - Schedule of Outstanding Share Purchase Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>996377 - Disclosure - Equity - Schedule of Assumptions in Calculating the Fair Value of the Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/EquityScheduleofAssumptionsinCalculatingtheFairValueoftheWarrantsDetails</Role>
      <ShortName>Equity - Schedule of Assumptions in Calculating the Fair Value of the Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>996378 - Disclosure - Equity - Schedule of Company Share Purchase Warrants Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/EquityScheduleofCompanySharePurchaseWarrantsOutstandingDetails</Role>
      <ShortName>Equity - Schedule of Company Share Purchase Warrants Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>996379 - Disclosure - Equity - Schedule of Movement of Respective Share Purchase Warrants and Issuance of Employee Share Incentive Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/EquityScheduleofMovementofRespectiveSharePurchaseWarrantsandIssuanceofEmployeeShareIncentivePlanDetails</Role>
      <ShortName>Equity - Schedule of Movement of Respective Share Purchase Warrants and Issuance of Employee Share Incentive Plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>996380 - Disclosure - Equity - Schedule of 2022 Performance Incentive Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/EquityScheduleof2022PerformanceIncentivePlanDetails</Role>
      <ShortName>Equity - Schedule of 2022 Performance Incentive Plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>996381 - Disclosure - Digital Assets Payable - Schedule of Digital Assets Payable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsPayableScheduleofDigitalAssetsPayableDetails</Role>
      <ShortName>Digital Assets Payable - Schedule of Digital Assets Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>996382 - Disclosure - Digital Assets Payable - Schedule of Movement of Digital Assets Payables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/DigitalAssetsPayableScheduleofMovementofDigitalAssetsPayablesDetails</Role>
      <ShortName>Digital Assets Payable - Schedule of Movement of Digital Assets Payables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>996383 - Disclosure - Payable to Customers - Schedule of Owned Obligations to the Customers (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/PayabletoCustomersScheduleofOwnedObligationstotheCustomersDetails</Role>
      <ShortName>Payable to Customers - Schedule of Owned Obligations to the Customers (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>996384 - Disclosure - Other Payables - Schedule of Accounts and Other Payables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OtherPayablesScheduleofAccountsandOtherPayablesDetails</Role>
      <ShortName>Other Payables - Schedule of Accounts and Other Payables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>996385 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss - Schedule of Financial Liabilities at Fair Value Through Profit or Loss (Third Party) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialLiabilitiesatFairValueThroughProfitorLossScheduleofFinancialLiabilitiesatFairValueThroughProfitorLossThirdPartyDetails</Role>
      <ShortName>Financial Liabilities at Fair Value Through Profit or Loss - Schedule of Financial Liabilities at Fair Value Through Profit or Loss (Third Party) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>996386 - Disclosure - Financial Liabilities at Fair Value Through Profit or Loss - Schedule of Movement of Financial Liabilities at Fair Value Through Profit or Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialLiabilitiesatFairValueThroughProfitorLossScheduleofMovementofFinancialLiabilitiesatFairValueThroughProfitorLossDetails</Role>
      <ShortName>Financial Liabilities at Fair Value Through Profit or Loss - Schedule of Movement of Financial Liabilities at Fair Value Through Profit or Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>996387 - Disclosure - Revenue - Schedule of Income from Wealth Management Services (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RevenueScheduleofIncomefromWealthManagementServicesDetails</Role>
      <ShortName>Revenue - Schedule of Income from Wealth Management Services (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>996388 - Disclosure - Cost of Income - Schedule of Cost of Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/CostofIncomeScheduleofCostofIncomeDetails</Role>
      <ShortName>Cost of Income - Schedule of Cost of Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>996389 - Disclosure - General and Administrative - Schedule of General and Administrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/GeneralandAdministrativeScheduleofGeneralandAdministrativeDetails</Role>
      <ShortName>General and Administrative - Schedule of General and Administrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>996390 - Disclosure - Finance Costs - Schedule of Finance Costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinanceCostsScheduleofFinanceCostsDetails</Role>
      <ShortName>Finance Costs - Schedule of Finance Costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>996391 - Disclosure - Other Income  - Schedule of Other Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/OtherIncomeScheduleofOtherIncomeDetails</Role>
      <ShortName>Other Income  - Schedule of Other Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>996392 - Disclosure - Income Tax Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpenseDetails</Role>
      <ShortName>Income Tax Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpenseTables</ParentRole>
      <Position>94</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>996393 - Disclosure - Income Tax Expense - Schedule of Tax Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpenseScheduleofTaxRateDetails</Role>
      <ShortName>Income Tax Expense - Schedule of Tax Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>996394 - Disclosure - Income Tax Expense - Schedule of Tax Rate (Parentheticals) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpenseScheduleofTaxRateParentheticalsDetails</Role>
      <ShortName>Income Tax Expense - Schedule of Tax Rate (Parentheticals) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>996395 - Disclosure - Financial Risk Management (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagementDetails</Role>
      <ShortName>Financial Risk Management (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagementTables</ParentRole>
      <Position>97</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>996396 - Disclosure - Financial Risk Management - Schedule of Non-Trade Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagementScheduleofNonTradeReceivableDetails</Role>
      <ShortName>Financial Risk Management - Schedule of Non-Trade Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>996397 - Disclosure - Financial Risk Management - Schedule of Level in Fair Value Hierarchy (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagementScheduleofLevelinFairValueHierarchyDetails</Role>
      <ShortName>Financial Risk Management - Schedule of Level in Fair Value Hierarchy (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>99</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>996398 - Disclosure - Financial Risk Management - Schedule of Contractual Undiscounted Cash Outflows of Non-Derivative Financial Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/FinancialRiskManagementScheduleofContractualUndiscountedCashOutflowsofNonDerivativeFinancialLiabilitiesDetails</Role>
      <ShortName>Financial Risk Management - Schedule of Contractual Undiscounted Cash Outflows of Non-Derivative Financial Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>996399 - Disclosure - Income (Loss) Per Share Attributable to Equity Holders of the Company (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeLossPerShareAttributabletoEquityHoldersoftheCompanyDetails</Role>
      <ShortName>Income (Loss) Per Share Attributable to Equity Holders of the Company (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpenseTables</ParentRole>
      <Position>101</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>996400 - Disclosure - Income (Loss) Per Share Attributable to Equity Holders of the Company - Schedule of Potentially Dilutive Ordinary Shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/IncomeLossPerShareAttributabletoEquityHoldersoftheCompanyScheduleofPotentiallyDilutiveOrdinarySharesDetails</Role>
      <ShortName>Income (Loss) Per Share Attributable to Equity Holders of the Company - Schedule of Potentially Dilutive Ordinary Shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://dragonVictoryinternational.com/20260331/role/IncomeTaxExpenseTables</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>996401 - Disclosure - Related Party Balances and Transactions - Schedule of Related Parties’ Relationships (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RelatedPartyBalancesandTransactionsScheduleofRelatedPartiesRelationshipsDetails</Role>
      <ShortName>Related Party Balances and Transactions - Schedule of Related Parties’ Relationships (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>996402 - Disclosure - Related Party Balances and Transactions - Schedule of Related Parties’ Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RelatedPartyBalancesandTransactionsScheduleofRelatedPartiesTransactionsDetails</Role>
      <ShortName>Related Party Balances and Transactions - Schedule of Related Parties’ Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="ea0299197-20f_metalpha.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>996403 - Disclosure - Related Party Balances and Transactions -Schedule of Remuneration to Senior Management (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://dragonVictoryinternational.com/20260331/role/RelatedPartyBalancesandTransactionsScheduleofRemunerationtoSeniorManagementDetails</Role>
      <ShortName>Related Party Balances and Transactions -Schedule of Remuneration to Senior Management (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</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="20-F" isDefinitelyFs="true" isIfrs="true" isUsgaap="true" original="ea0299197-20f_metalpha.htm">ea0299197-20f_metalpha.htm</File>
    <File>math-20260331.xsd</File>
    <File>math-20260331_cal.xml</File>
    <File>math-20260331_def.xml</File>
    <File>math-20260331_lab.xml</File>
    <File>math-20260331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>ea029919701_img1.jpg</File>
    <File>ea029919701_img2.jpg</File>
    <File>ea029919701_img3.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="14">http://xbrl.sec.gov/cyd/2025</BaseTaxonomy>
    <BaseTaxonomy items="47">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="1">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
    <BaseTaxonomy items="856">https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
