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Taxes (Details) - Schedule of Valuation Allowance of Deferred Tax Assets - USD ($)	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Schedule of Valuation Allowance of Deferred Tax Assets [Line Items]
Balance as of beginning of year	$ (76,368)	$ (97,933)
Additions of valuation allowance	(134,811)	21,565
Reductions of valuation allowance	43,249
Exchange difference	4,956
Balance as of end of year	$ (162,974)	$ (76,368)

X

- Definition

Amount of reductions of valuation allowance.

+ References

No definition available.

+ Details

Name:	gmm_ReductionsOfValuationAllowance
Namespace Prefix:	gmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of expense in the period for fees charged by securities exchanges for the privilege of trading securities listed on that exchange. Some fees vary with the related volume, while others are fixed.

+ References

No definition available.

+ Details

Name:	us-gaap_ExchangeFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ValuationAllowanceLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration