v3.25.4

Segment reporting (Tables) | 6 Months Ended
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Dec. 31, 2025
Segment Reporting [Abstract] |
Summary of potential format for reporting the results of the Company's reportable segment | The results of the Company’s reportable segment is summarized as follows:
|  | Three Months Ended |  |  | Six Months Ended |
(US$’000) |  | December 31, |
Operating Expenses |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Research and development |  | $ | 5,834 |  |  | $ | 5,385 |  |  | $ | 9,204 |  |  | $ | 8,970 |
General and administrative |  |  | 7,543 |  |  |  | 5,420 |  |  |  | 13,976 |  |  |  | 7,626 |
Other segment items |  |  | (1,540 | ) |  |  | (1,253 | ) |  |  | (2,378 | ) |  |  | (1,985 | )
Net loss |  | $ | (11,837 | ) |  | $ | (9,552 | ) |  | $ | (20,802 | ) |  | $ | (14,611 | )

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- Definition Summary of potential format for reporting the results of the company's reportable segment. + References No definition available. + Details
Name: | bntc_SummaryOfPotentialFormatForReportingTheResultsOfTheCompanysReportableSegment
Namespace Prefix: | bntc_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration