Additional period of time to consummate a Business Combination.

No definition available.

Name:	mcaau_AdditionalPeriodOfTimeToConsummateBusinessCombination
Namespace Prefix:	mcaau_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the information pertaining to amount deposited in trust account during the period.

+ References

No definition available.

+ Details

Name:	mcaau_AmountDepositedInTrustAccount
Namespace Prefix:	mcaau_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Price per share or per unit of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	mcaau_ClassOfWarrantOrRightPriceOfWarrantsOrRights
Namespace Prefix:	mcaau_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of maximum borrowing capacity of related party promissory note.

+ References

No definition available.

+ Details

Name:	mcaau_MaximumBorrowingCapacityOfRelatedPartyPromissoryNote
Namespace Prefix:	mcaau_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The maximum amount which a potential loan could have repaid through issuance of warrants.

+ References

No definition available.

+ Details

Name:	mcaau_MaximumLoansConvertibleIntoWarrants
Namespace Prefix:	mcaau_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Total number of months to complete a Business Combination.

+ References

No definition available.

+ Details

Name:	mcaau_TotalNumberOfMonthsToCompleteBusinessCombination
Namespace Prefix:	mcaau_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount for notes payable (written promise to pay), due to related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.17)
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(k)(1))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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

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

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=mcaau_PromissoryNoteWithRelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=mcaau_RelatedPartyLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=mcaau_WorkingCapitalLoansWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=mcaau_RelatedPartyExtensionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions - Promissory Note and Loans (Details) - USD ($)	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Apr. 23, 2021
Over-allotment option
Related Party Transaction [Line Items]
Amount deposited in trust account	$ 2,300,000
Promissory Note with Related Party
Related Party Transaction [Line Items]
Maximum borrowing capacity of related party promissory note			$ 500,000
Outstanding balance of related party note	118,833	$ 118,833
Related Party Loans \| Working capital loans warrant
Related Party Transaction [Line Items]
Outstanding balance of related party note	0	$ 0
Loan conversion agreement warrant	$ 1,500,000
Price of warrant	$ 1.00
Related Party Extension Loans
Related Party Transaction [Line Items]
Price of warrant	$ 1.00
Additional period of time to consummate a Business Combination	3 months
Total number of months to complete a Business Combination	18 months
Amount deposited in trust account	$ 2,000,000
Related Party Extension Loans \| Over-allotment option
Related Party Transaction [Line Items]
Price of warrant	$ 0.10
Amount deposited in trust account	$ 2,300,000