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Summary of Significant Accounting Policies (Details) - Schedule of Unaudited Condensed Consolidated Financial Statements	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Schedule of Unaudited Condensed Consolidated Financial Statements [Abstract]
Year-end spot rate	7.296	7.1135
Average rate	7.0553	6.5532	6.5072

X

- Definition

The currency exchange average rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	gmm_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Currency exchange year end spot rate.

+ References

No definition available.

+ Details

Name:	gmm_CurrencyExchangeYearendSpotRate
Namespace Prefix:	gmm_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	gmm_ScheduleOfUnauditedCondensedConsolidatedFinancialStatementAbstract
Namespace Prefix:	gmm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration