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Period during which the company has agreed not to compete with disposal group, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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Percentage of net proceeds receivable by the company if the asset is sold by the disposal group within the given time frame.

No definition available.

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Percentage of non-voting, non-distributing equity interest retained by the company in a disposal group.

No definition available.

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Data Type:	dtr-types:percentItemType
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Period during which the transferred asset is required to be sold by the disposal group, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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Number of membership interests acquired in investments accounted for under the equity method of accounting.

No definition available.

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Namespace Prefix:	cntm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Number of shares issuable as a part of consideration to the investee accounted for under the equity method of accounting.

No definition available.

Name:	cntm_EquityMethodInvestmentNumberOfSharesIssuable
Namespace Prefix:	cntm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The percentage of ownership of common stock or equity participation to be acquired in the investee accounted for under the equity method of accounting.

No definition available.

Name:	cntm_EquityMethodInvestmentOwnershipPercentageToBeAcquired
Namespace Prefix:	cntm_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of gross revenue that is entitled to be received as fees for providing services.

No definition available.

Name:	cntm_PercentageOfGrossRevenueAsServiceFees
Namespace Prefix:	cntm_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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

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Namespace Prefix:
Data Type:	na
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Data Type:	na
Balance Type:
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Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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