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Due to Target Company (Details Narrative) - USD ($)	Nov. 30, 2025	Nov. 30, 2024
Due To Target Company
Due to target company	$ 575,000	$ (0)

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- References

No definition available.

+ Details

Name:	BKHAU_DisclosureDueToTargetCompanyAbstract
Namespace Prefix:	BKHAU_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	BKHAU_DueToTargetCompany
Namespace Prefix:	BKHAU_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant