XML 74 R60.htm IDEA: XBRL DOCUMENT
v3.25.4

Schedule of expected useful lives for property, plant and equipment (Details) | 12 Months Ended
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Jun. 30, 2025
Machinery [member] |
IfrsStatementLineItems [Line Items] |
Expected useful lives | 3 years
Fixtures and fittings [member] |
IfrsStatementLineItems [Line Items] |
Expected useful lives | 3 years
Other property, plant and equipment [member] |
IfrsStatementLineItems [Line Items] |
Expected useful lives | 3 years
Renovation [Member] |
IfrsStatementLineItems [Line Items] |
Expected useful lives | 5 years
Air Conditioner [Member] |
IfrsStatementLineItems [Line Items] |
Expected useful lives | 3 years
Computer equipment [member] |
IfrsStatementLineItems [Line Items] |
Expected useful lives | 3 years
Software [Member] |
IfrsStatementLineItems [Line Items] |
Expected useful lives | 3 years

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

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- Definition The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_MachineryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_FixturesAndFittingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_OtherPropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=BMGL_RenovationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=BMGL_AirConditionerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_ComputerEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=BMGL_SoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |