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v3.25.4

Schedule of transactions with related parties (Details) - Total for all related parties [member] | 12 Months Ended
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Jun. 30, 2025 USD ($) | Jun. 30, 2025 SGD ($) | Jun. 30, 2024 SGD ($)
IfrsStatementLineItems [Line Items] |  |  |
Interest income on loan to related party | $ 1,507 | $ 1,917 |
Management fee | 3,852,504 | 4,900,000 |
Payment made on behalf to related parties | $ 3,715 | $ 4,725 | $ 1,311,390

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

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- Definition Interest income on loans and receivable. + References No definition available. + Details
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Namespace Prefix: | BMGL_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Management fee. + References No definition available. + Details
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Namespace Prefix: | BMGL_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The cash outflow for repayments of advances and loans from related parties. [Refer: Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 17 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17&doctype=Standard -URIDate 2024-03-27 + Details
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Balance Type: | credit
Period Type: | duration

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- Details
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Period Type: |