<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>82</ContextCount>
  <ElementCount>194</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>14</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - Condensed Consolidated Statements of Financial Position (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Condensed Consolidated Statements of Financial Position (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - Condensed Consolidated Statements of Financial Position (Unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Condensed Consolidated Statements of Financial Position (Unaudited) (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - Condensed Consolidated Statements of Comprehensive Loss (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Condensed Consolidated Statements of Comprehensive Loss (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - Condensed Statements of Changes in Equity (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ShareholdersEquityType2or3</Role>
      <ShortName>Condensed Statements of Changes in Equity (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Disclosure - General</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/General</Role>
      <ShortName>General</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Basis of Preparation of the Unaudited Interim Consolidated Financial Statements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/BasisofPreparationoftheUnauditedInterimConsolidatedFinancialStatements</Role>
      <ShortName>Basis of Preparation of the Unaudited Interim Consolidated Financial Statements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/SignificantAccountingPolicies</Role>
      <ShortName>Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Significant Events During The Period</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/SignificantEventsDuringThePeriod</Role>
      <ShortName>Significant Events During The Period</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Restatement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/Restatement</Role>
      <ShortName>Restatement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Marketable Securities ??? InterCure Ltd</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/MarketableSecuritiesInterCureLtd</Role>
      <ShortName>Marketable Securities ??? InterCure Ltd</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/Warrants</Role>
      <ShortName>Warrants</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Transactions With Related Parties</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/TransactionsWithRelatedParties</Role>
      <ShortName>Transactions With Related Parties</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Restatement (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/RestatementTables</Role>
      <ShortName>Restatement (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://xtlb.com/role/Restatement</ParentRole>
      <Position>16</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Marketable Securities ??? InterCure Ltd (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/MarketableSecuritiesInterCureLtdTables</Role>
      <ShortName>Marketable Securities ??? InterCure Ltd (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://xtlb.com/role/MarketableSecuritiesInterCureLtd</ParentRole>
      <Position>17</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Warrants (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/WarrantsTables</Role>
      <ShortName>Warrants (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://xtlb.com/role/Warrants</ParentRole>
      <Position>18</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Transactions With Related Parties (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/TransactionsWithRelatedPartiesTables</Role>
      <ShortName>Transactions With Related Parties (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://xtlb.com/role/TransactionsWithRelatedParties</ParentRole>
      <Position>19</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Restatement (Details) - Schedule of impact on the consolidated statement of comprehensive income (loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ScheduleofimpactontheconsolidatedstatementofcomprehensiveincomelossTable</Role>
      <ShortName>Restatement (Details) - Schedule of impact on the consolidated statement of comprehensive income (loss)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/RestatementTables</ParentRole>
      <Position>20</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Restatement (Details) - Schedule of impact on the consolidated statements of financial position</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ScheduleofimpactontheconsolidatedstatementsoffinancialpositionTable</Role>
      <ShortName>Restatement (Details) - Schedule of impact on the consolidated statements of financial position</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/RestatementTables</ParentRole>
      <Position>21</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Marketable Securities ??? InterCure Ltd (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/MarketableSecuritiesInterCureLtdDetails</Role>
      <ShortName>Marketable Securities ??? InterCure Ltd (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/MarketableSecuritiesInterCureLtdTables</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Marketable Securities ??? InterCure Ltd (Details) - Schedule of financial instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ScheduleoffinancialinstrumentsTable</Role>
      <ShortName>Marketable Securities ??? InterCure Ltd (Details) - Schedule of financial instruments</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/MarketableSecuritiesInterCureLtdTables</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/WarrantsDetails</Role>
      <ShortName>Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/WarrantsTables</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>024 - Disclosure - Warrants (Details) - Schedule of warrants valuation assumptions of investors' warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ScheduleofwarrantsvaluationassumptionsofinvestorswarrantsTable</Role>
      <ShortName>Warrants (Details) - Schedule of warrants valuation assumptions of investors' warrants</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/WarrantsTables</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>025 - Disclosure - Warrants (Details) - Schedule of outstanding warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ScheduleofoutstandingwarrantsTable</Role>
      <ShortName>Warrants (Details) - Schedule of outstanding warrants</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/WarrantsTables</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>026 - Disclosure - Transactions With Related Parties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/TransactionsWithRelatedPartiesDetails</Role>
      <ShortName>Transactions With Related Parties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/TransactionsWithRelatedPartiesTables</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>027 - Disclosure - Transactions With Related Parties (Details) - Schedule of compensation to key management personnel for employee services</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/ScheduleofcompensationtokeymanagementpersonnelforemployeeservicesTable</Role>
      <ShortName>Transactions With Related Parties (Details) - Schedule of compensation to key management personnel for employee services</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/TransactionsWithRelatedPartiesTables</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="ea146254-6k_xtlbiopharma.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>028 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xtlb.com/role/SubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://xtlb.com/role/SubsequentEvents</ParentRole>
      <Position>29</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="6-K" original="ea146254-6k_xtlbiopharma.htm">ea146254-6k_xtlbiopharma.htm</File>
    <File doctype="6-K" original="ea146254ex99-2_xtlbiopharma.htm">ea146254ex99-2_xtlbiopharma.htm</File>
    <File>ea146254ex99-1_xtlbiopharma.htm</File>
    <File>xtlb-20210630.xsd</File>
    <File>xtlb-20210630_cal.xml</File>
    <File>xtlb-20210630_def.xml</File>
    <File>xtlb-20210630_lab.xml</File>
    <File>xtlb-20210630_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2021</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2021-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
