v3.22.2.2

WARRANT LIABILITIES (Details) - $ / shares	6 Months Ended
WARRANT LIABILITIES (Details) - $ / shares	Jun. 30, 2022	Sep. 17, 2020
Warrants [Abstract]
Period warrants to become excisable after business combination	30 days
Period to exercise warrants after public offerings	12 months
Expiration period of warrants	5 years
Number of days to file registration statement	15 days
Period for registration statement to become effective	60 days
Warrant redemption price (in dollars per share)	$ 0.01
Share price (in dollars per share)		$ 10.00
Tender offer provision	50.00%
Minimum [Member]
Warrants [Abstract]
Notice period to redeem warrants	30 days
Class A Common Stock [Member]
Warrants [Abstract]
Number of trading days	20 days
Trading day threshold period	30 days
Class A Common Stock [Member] \| Minimum [Member]
Warrants [Abstract]
Share price (in dollars per share)	$ 18.00
Class A Common Stock [Member] \| Additional Issue of Common Stock or Equity-linked Securities [Member]
Warrants [Abstract]
Share price (in dollars per share)	$ 9.20
Percentage of newly issued price to be adjusted to exercise price of warrants	115.00%
Period for warrants to become exercisable	30 days

Redemption price per share or per unit of warrants or rights outstanding.

+ References

No definition available.

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- Definition

Period to provide written notice to redeem warrants, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Number of trading days for common stock price to exceed threshold, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The percentage of newly issued common stock price to be adjusted to exercise price of warrants.

+ References

No definition available.

+ Details

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- Definition

Period of time required to pass after the filing of a registration statement to become effective before warrant holders may be permitted to exercise warrants, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	nmmc_
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- Definition

Period of time required before warrants become exercisable after the completion of a Business Combination, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

Period for warrants to exercise after the completion of public offering, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Period the entity is required to file a registration statement following the closing of a Business Combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

A provision that in the event of a tender or exchange offer made to and accepted by holders of more than a specified percentage of the outstanding shares of a single class of common stock, all holders of the warrants would be entitled to receive cash for their warrants (the "tender offer provision").

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Threshold period of specified trading days that common stock price exceeds threshold price per share, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	nmmc_
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- Definition

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
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Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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North Mountain Merger Corp. 10-Q