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Subsequent Events (Details) - USD ($)	Jun. 30, 2021	Jun. 25, 2021
Subsequent Event [Member]
Working capital loans	$ 400,000	$ 400,000

X

- Definition

Working capital loans.

+ References

No definition available.

+ Details

Name:	MCMJ_WorkingCapitalLoans
Namespace Prefix:	MCMJ_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: