Marketable Securities - InterCure Ltd (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value measurement of assets [line items]
Total marketable securities	$ 2,273	$ 2,847
Marketable securities [Member]
Disclosure of fair value measurement of assets [line items]
Total marketable securities	$ 2,273	$ 2,847

Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer.

No definition available.

Name:	xtlb_CurrentMarketableSecurities
Namespace Prefix:	xtlb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant