No definition available.

Name:	bmaqu_AmountDepositedIntoTrustAccount
Namespace Prefix:	bmaqu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

This pertains to the Period for not transfer, assigning, or sale of Business combination

No definition available.

Name:	bmaqu_PeriodForNotTransferAssigningOrSaleOfBusinessCombination
Namespace Prefix:	bmaqu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

It represents the number of units issued during period shares.

No definition available.

Name:	bmaqu_UnitsIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	bmaqu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Per share or per unit amount of equity securities issued.

No definition available.

Name:	us-gaap_SharesIssuedPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

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.

No definition available.

Blockchain Moon Acquisition Corp. 10-K