RESEARCH AND LICENSE AGREEMENT (Details Textual)	3 Months Ended
Mar. 31, 2019
Research And License Agreement [Line Items]
Percentage Of Royalty Payment If Licensed Product Covered By Valid Claim Or Orphan Drug Status	5.00%
Percentage Of Royalty Payment If Licensed Product Not Covered By Valid Claim Or Orphan Drug Status	3.00%
Validity Of Royalty Payment Not Covered By Valid Claim Or Orphan Drug Status	0 years

This element represents the percentage of all net sales royalty that the company will pay if the making, producing, manufacturing, using, marketing, selling, importing or exporting of such Licensed Product is not covered by a Valid Claim or is not covered by Orphan Drug Status.

No definition available.

Name:	bcli_PercentageOfRoyaltyPaymentIfLicensedProductNotCoveredByValidClaimOrOrphanDrugStatus
Namespace Prefix:	bcli_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration