Overall net exposure.

No definition available.

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Namespace Prefix:	BLIV_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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- Definition

The amount of trade payables and other payables. [Refer: Trade payables; Other payables]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
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-URIDate 2024-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 54
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2024-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Schedule of foreign currency risk (Details)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 SGD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 SGD ($)	Dec. 31, 2023 SGD ($)	Dec. 31, 2022 SGD ($)
Notes and other explanatory information [abstract]
Trade and other receivables	$ 40,086		$ 32,002
Cash and cash equivalents	8,396,552	$ 8,577,947	24,312	$ 66,184	$ 197,709	$ 216,752
Trade and other payables	(134,275)		(53,266)
Overall net exposure	$ 8,302,363		$ 3,048