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Research and Development Expenses (Details) - Schedule of Research and Development Expenses - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Research and Development Expenses [Abstract]
Fees related to service providers	$ 31	$ 30	$ 30

X

- Definition

The amount of fees related to service providers.

+ References

No definition available.

+ Details

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Namespace Prefix:	xtlb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	xtlb_ScheduleOfResearchAndDevelopmentExpensesAbstract
Namespace Prefix:	xtlb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration