STATEMENT OF CHANGES IN SHAREHOLDERS' DEFICIT (Parenthetical) - Class B ordinary shares - Founder shares - Sponsor - Over-allotment option - shares	Jul. 06, 2026	Jun. 30, 2026
Maximum number of shares subject to forfeiture		656,250
Subsequent event
Number of shares no longer subject to forfeiture	656,250

Maximum number of shares subject to forfeiture if the over-allotment option is not exercised in full or in part by the underwriter.

No definition available.

Name:	miacu_MaximumNumberOfSharesSubjectToForfeiture
Namespace Prefix:	miacu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant