<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>171</ContextCount>
  <ElementCount>328</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>65</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Consolidated Balance Sheets (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Consolidated Balance Sheets (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Consolidated Statements of Operations (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ConsolidatedIncomeStatement_Parentheticals</Role>
      <ShortName>Consolidated Statements of Operations (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - Consolidated Statements of Convertible Preferred Shares and Shareholders??? (Deficiency) Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ShareholdersEquityType2or3</Role>
      <ShortName>Consolidated Statements of Convertible Preferred Shares and Shareholders??? (Deficiency) Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - General</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/General</Role>
      <ShortName>General</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/SignificantAccountingPolicies</Role>
      <ShortName>Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Prepaid Expenses and Other Receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/PrepaidExpensesandOtherReceivables</Role>
      <ShortName>Prepaid Expenses and Other Receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/PropertyandEquipmentNet</Role>
      <ShortName>Property and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Lease</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/Lease</Role>
      <ShortName>Lease</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Other Payables and Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/OtherPayablesandAccruedExpenses</Role>
      <ShortName>Other Payables and Accrued Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Long-Term Loan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/LongTermLoan</Role>
      <ShortName>Long-Term Loan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Warrants Liability</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/WarrantsLiability</Role>
      <ShortName>Warrants Liability</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/FairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Convertible Preferred Shares and Warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ConvertiblePreferredSharesandWarrants</Role>
      <ShortName>Convertible Preferred Shares and Warrants</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Commitments and Contingent Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/CommitmentsandContingentLiabilities</Role>
      <ShortName>Commitments and Contingent Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Shareholders??? (Deficiency) Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ShareholdersDeficiencyEquity</Role>
      <ShortName>Shareholders??? (Deficiency) Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Financial Expenses (Income), Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/FinancialExpensesIncomeNet</Role>
      <ShortName>Financial Expenses (Income), Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Basic and Diluted Net Loss Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/BasicandDilutedNetLossPerShare</Role>
      <ShortName>Basic and Diluted Net Loss Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Geographic Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/GeographicInformation</Role>
      <ShortName>Geographic Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Related Parties</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/RelatedParties</Role>
      <ShortName>Related Parties</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>996000 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>996001 - Disclosure - Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/SignificantAccountingPoliciesTables</Role>
      <ShortName>Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>996002 - Disclosure - Prepaid Expenses and Other Receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/PrepaidExpensesandOtherReceivablesTables</Role>
      <ShortName>Prepaid Expenses and Other Receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/PrepaidExpensesandOtherReceivables</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>996003 - Disclosure - Property and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/PropertyandEquipmentNetTables</Role>
      <ShortName>Property and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/PropertyandEquipmentNet</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>996004 - Disclosure - Lease (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/LeaseTables</Role>
      <ShortName>Lease (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/Lease</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>996005 - Disclosure - Other Payables and Accrued Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/OtherPayablesandAccruedExpensesTables</Role>
      <ShortName>Other Payables and Accrued Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/OtherPayablesandAccruedExpenses</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>996006 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/FairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/FairValueMeasurements</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>996007 - Disclosure - Shareholders??? (Deficiency) Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ShareholdersDeficiencyEquityTables</Role>
      <ShortName>Shareholders??? (Deficiency) Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/ShareholdersDeficiencyEquity</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>996008 - Disclosure - Financial Expenses (Income), Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/FinancialExpensesIncomeNetTables</Role>
      <ShortName>Financial Expenses (Income), Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/FinancialExpensesIncomeNet</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>996009 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/IncomeTaxes</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>996010 - Disclosure - Basic and Diluted Net Loss Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/BasicandDilutedNetLossPerShareTables</Role>
      <ShortName>Basic and Diluted Net Loss Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/BasicandDilutedNetLossPerShare</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>996011 - Disclosure - Geographic Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/GeographicInformationTables</Role>
      <ShortName>Geographic Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/GeographicInformation</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>996012 - Disclosure - Related Parties (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/RelatedPartiesTables</Role>
      <ShortName>Related Parties (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/RelatedParties</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>996013 - Disclosure - General (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/GeneralDetails</Role>
      <ShortName>General (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/General</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>996014 - Disclosure - Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/SignificantAccountingPoliciesDetails</Role>
      <ShortName>Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>996015 - Disclosure - Significant Accounting Policies (Details) - Schedule of Cash, Cash Equivalents and Restricted Cash Balances</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofCashCashEquivalentsandRestrictedCashBalancesTable</Role>
      <ShortName>Significant Accounting Policies (Details) - Schedule of Cash, Cash Equivalents and Restricted Cash Balances</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>996016 - Disclosure - Significant Accounting Policies (Details) - ???Schedule of Estimated Useful Lives of the Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofEstimatedUsefulLivesoftheAssetsTable</Role>
      <ShortName>Significant Accounting Policies (Details) - ???Schedule of Estimated Useful Lives of the Assets</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>996017 - Disclosure - Significant Accounting Policies (Details) - ???Schedule of Assumptions for Options Granted To Employees and Non-Employees</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofAssumptionsforOptionsGrantedToEmployeesandNonEmployeesTable</Role>
      <ShortName>Significant Accounting Policies (Details) - ???Schedule of Assumptions for Options Granted To Employees and Non-Employees</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>996018 - Disclosure - Prepaid Expenses and Other Receivables (Details) - Schedule of Prepaid Expenses and Other Receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofPrepaidExpensesandOtherReceivablesTable</Role>
      <ShortName>Prepaid Expenses and Other Receivables (Details) - Schedule of Prepaid Expenses and Other Receivables</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/PrepaidExpensesandOtherReceivablesTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>996019 - Disclosure - Property and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/PropertyandEquipmentNetDetails</Role>
      <ShortName>Property and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/PropertyandEquipmentNetTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>996020 - Disclosure - Property and Equipment, Net (Details) - Schedule of Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofPropertyandEquipmentNetTable</Role>
      <ShortName>Property and Equipment, Net (Details) - Schedule of Property and Equipment, Net</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/PropertyandEquipmentNetTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>996021 - Disclosure - Lease (Details) - Schedule of Operating Lease Costs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofOperatingLeaseCostsTable</Role>
      <ShortName>Lease (Details) - Schedule of Operating Lease Costs</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/LeaseTables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>996022 - Disclosure - Lease (Details) - Schedule of Supplemental Balance Sheet Information Related to Operating Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofSupplementalBalanceSheetInformationRelatedtoOperatingLeasesTable</Role>
      <ShortName>Lease (Details) - Schedule of Supplemental Balance Sheet Information Related to Operating Leases</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/LeaseTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>996023 - Disclosure - Lease (Details) - Schedule of Minimum Lease Payments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofMinimumLeasePaymentsTable</Role>
      <ShortName>Lease (Details) - Schedule of Minimum Lease Payments</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/LeaseTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>996024 - Disclosure - Other Payables and Accrued Expenses (Details) - ???Schedule of Other Payables and Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofOtherPayablesandAccruedExpensesTable</Role>
      <ShortName>Other Payables and Accrued Expenses (Details) - ???Schedule of Other Payables and Accrued Expenses</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/OtherPayablesandAccruedExpensesTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>996025 - Disclosure - Long-Term Loan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/LongTermLoanDetails</Role>
      <ShortName>Long-Term Loan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/LongTermLoan</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>996026 - Disclosure - Warrants Liability (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/WarrantsLiabilityDetails</Role>
      <ShortName>Warrants Liability (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/WarrantsLiability</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>996027 - Disclosure - Fair Value Measurements (Details) - Schedule of Liabilities Measured at Fair Value on a Recurring Basis</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofLiabilitiesMeasuredatFairValueonaRecurringBasisTable</Role>
      <ShortName>Fair Value Measurements (Details) - Schedule of Liabilities Measured at Fair Value on a Recurring Basis</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/FairValueMeasurementsTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>996028 - Disclosure - Convertible Preferred Shares and Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ConvertiblePreferredSharesandWarrantsDetails</Role>
      <ShortName>Convertible Preferred Shares and Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/ConvertiblePreferredSharesandWarrants</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>996029 - Disclosure - Commitments and Contingent Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/CommitmentsandContingentLiabilitiesDetails</Role>
      <ShortName>Commitments and Contingent Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/CommitmentsandContingentLiabilities</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>996030 - Disclosure - Shareholders??? (Deficiency) Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ShareholdersDeficiencyEquityDetails</Role>
      <ShortName>Shareholders??? (Deficiency) Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/ShareholdersDeficiencyEquityTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>996031 - Disclosure - Shareholders??? (Deficiency) Equity (Details) - Schedule of the Status of Options and Changes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleoftheStatusofOptionsandChangesTable</Role>
      <ShortName>Shareholders??? (Deficiency) Equity (Details) - Schedule of the Status of Options and Changes</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/ShareholdersDeficiencyEquityTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>996032 - Disclosure - Shareholders??? (Deficiency) Equity (Details) - Schedule of Summary of the Status of RSUs Under the Plan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofSummaryoftheStatusofRSUsUnderthePlanTable</Role>
      <ShortName>Shareholders??? (Deficiency) Equity (Details) - Schedule of Summary of the Status of RSUs Under the Plan</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/ShareholdersDeficiencyEquityTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>996033 - Disclosure - Shareholders??? (Deficiency) Equity (Details) - Schedule of Total Equity-Based Compensation Expense</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofTotalEquityBasedCompensationExpenseTable</Role>
      <ShortName>Shareholders??? (Deficiency) Equity (Details) - Schedule of Total Equity-Based Compensation Expense</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/ShareholdersDeficiencyEquityTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>996034 - Disclosure - Financial Expenses (Income), Net (Details) - Schedule of Financial Expenses (Income), Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofFinancialExpensesIncomeNetTable</Role>
      <ShortName>Financial Expenses (Income), Net (Details) - Schedule of Financial Expenses (Income), Net</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/FinancialExpensesIncomeNetTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>996035 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/IncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/IncomeTaxesTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>996036 - Disclosure - Income Taxes (Details) - Schedule of Net Loss (Income) Before Tax on Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofNetLossIncomeBeforeTaxonIncomeTable</Role>
      <ShortName>Income Taxes (Details) - Schedule of Net Loss (Income) Before Tax on Income</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/IncomeTaxesTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>996037 - Disclosure - Income Taxes (Details) - Schedule of Income Tax Expense</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofIncomeTaxExpenseTable</Role>
      <ShortName>Income Taxes (Details) - Schedule of Income Tax Expense</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/IncomeTaxesTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>996038 - Disclosure - Income Taxes (Details) - Schedule of Deferred Tax Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofDeferredTaxAssetsTable</Role>
      <ShortName>Income Taxes (Details) - Schedule of Deferred Tax Assets</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/IncomeTaxesTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996039 - Disclosure - Basic and Diluted Net Loss Per Share (Details) - ???Schedule of Basic and Diluted Net Loss Per Ordinary Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofBasicandDilutedNetLossPerOrdinaryShareTable</Role>
      <ShortName>Basic and Diluted Net Loss Per Share (Details) - ???Schedule of Basic and Diluted Net Loss Per Ordinary Share</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/BasicandDilutedNetLossPerShareTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996040 - Disclosure - Basic and Diluted Net Loss Per Share (Details) - ???Schedule of Basic and Diluted Net Loss Per Ordinary Share (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofBasicandDilutedNetLossPerOrdinaryShareTable_Parentheticals</Role>
      <ShortName>Basic and Diluted Net Loss Per Share (Details) - ???Schedule of Basic and Diluted Net Loss Per Ordinary Share (Parentheticals)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/BasicandDilutedNetLossPerShareTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996041 - Disclosure - Basic and Diluted Net Loss Per Share (Details) - ???Schedule of Computation of Diluted Net Loss Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofComputationofDilutedNetLossPerShareTable</Role>
      <ShortName>Basic and Diluted Net Loss Per Share (Details) - ???Schedule of Computation of Diluted Net Loss Per Share</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/BasicandDilutedNetLossPerShareTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996042 - Disclosure - Geographic Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/GeographicInformationDetails</Role>
      <ShortName>Geographic Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/GeographicInformationTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996043 - Disclosure - Geographic Information (Details) - Schedule of Property and Equipment, Net and Operating Lease Right-of-Use Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofPropertyandEquipmentNetandOperatingLeaseRightofUseAssetsTable</Role>
      <ShortName>Geographic Information (Details) - Schedule of Property and Equipment, Net and Operating Lease Right-of-Use Assets</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/GeographicInformationTables</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>996044 - Disclosure - Related Parties (Details) - Schedule of Transactions with Related Parties</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofTransactionswithRelatedPartiesTable</Role>
      <ShortName>Related Parties (Details) - Schedule of Transactions with Related Parties</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/RelatedPartiesTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="ea0200770-20f_alphatau.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>996045 - Disclosure - Related Parties (Details) - Schedule of Balances with the Related Parties</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.alphatau.com/role/ScheduleofBalanceswiththeRelatedPartiesTable</Role>
      <ShortName>Related Parties (Details) - Schedule of Balances with the Related Parties</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.alphatau.com/role/RelatedPartiesTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>drts-20231231.xsd</File>
    <File>drts-20231231_cal.xml</File>
    <File>drts-20231231_def.xml</File>
    <File>drts-20231231_lab.xml</File>
    <File>drts-20231231_pre.xml</File>
    <File doctype="20-F" isDefinitelyFs="true" isUsgaap="true" original="ea0200770-20f_alphatau.htm">ea0200770-20f_alphatau.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>fin_001.jpg</File>
    <File>image_001.jpg</File>
    <File>image_002.jpg</File>
    <File>image_003.jpg</File>
    <File>image_004.jpg</File>
    <File>image_005.jpg</File>
    <File>image_006.jpg</File>
    <File>image_007.jpg</File>
    <File>image_008.jpg</File>
    <File>image_009.jpg</File>
    <File>image_010.jpg</File>
    <File>image_011.jpg</File>
    <File>image_012.jpg</File>
    <File>image_013.jpg</File>
    <File>image_014.jpg</File>
    <File>image_015.jpg</File>
    <File>image_016.jpg</File>
    <File>image_017.jpg</File>
    <File>image_018.jpg</File>
    <File>image_019.jpg</File>
    <File>image_020.jpg</File>
    <File>image_021.jpg</File>
    <File>image_022.jpg</File>
    <File>image_023.jpg</File>
    <File>image_024.jpg</File>
    <File>image_025.jpg</File>
    <File>image_026.jpg</File>
    <File>image_027.jpg</File>
    <File>image_028.jpg</File>
    <File>image_029.jpg</File>
    <File>image_030.jpg</File>
    <File>image_031.jpg</File>
    <File>image_032.jpg</File>
    <File>image_033.jpg</File>
    <File>image_034.jpg</File>
    <File>image_035.jpg</File>
    <File>image_036.jpg</File>
    <File>image_037.jpg</File>
    <File>image_038.jpg</File>
    <File>image_039.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2023</BaseTaxonomy>
    <BaseTaxonomy items="669">http://fasb.org/us-gaap/2023</BaseTaxonomy>
    <BaseTaxonomy items="46">http://xbrl.sec.gov/dei/2023</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
