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MATERIAL ACCOUNTING POLICIES (Schedule of Useful Life of Right of Use Assets) (Details) | 12 Months Ended
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Dec. 31, 2025
Property [Member] |
Disclosure of quantitative information about right-of-use assets [line items] |
Estimated useful lives or lease period of right of use assets (in Years) | 11
Motor vehicles [Member] |
Disclosure of quantitative information about right-of-use assets [line items] |
Estimated useful lives or lease period of right of use assets (in Years) | 3

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- Definition Description of useful life or lease period of right of use assets. + References No definition available. + Details
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Namespace Prefix: | blrx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_LandAndBuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_MotorVehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |