Related party transaction percentage of all costs associated with portfolio projects in development.

No definition available.

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Period Type:	instant

- Definition

Related party transaction percentage of portfolio revenues.

+ References

No definition available.

+ Details

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- Definition

Related party transaction percentage of purchase price of acquired asset.

+ References

No definition available.

+ Details

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Namespace Prefix:	chci_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Related Party Transaction Percentage of Re-zoning Costs

+ References

No definition available.

+ Details

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Data Type:	dtr-types1:percentItemType
Balance Type:	na
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- Definition

Related party transaction percentage of sales price of asset on disposition.

+ References

No definition available.

+ Details

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Namespace Prefix:	chci_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Purchase price of expected asset acquisition prior to consideration being transferred. Excludes business acquisition.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 15
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480123/805-50-15-3

+ Details

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Balance Type:	credit
Period Type:	duration

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

+ Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_RelatedPartyTransactionAxis=chci_EntitlementFeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_RelatedPartyTransactionAxis=chci_DevelopmentAndConstructionFeeMember
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Data Type:	na
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- Details

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- Details

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- Details

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Related Party Transactions - Schedule of Market Rate Fee (Details) - 2022 Amended Asset Management Agreement - Related party - USD ($) $ in Millions	1 Months Ended
	Jun. 30, 2022	Dec. 31, 2022
Asset Management Fee
Related Party Transaction [Line Items]
Percentage of anchor portfolio revenue		2.50%
Entitlement Fee
Related Party Transaction [Line Items]
Percentage of re-zoning costs		15.00%
Development and Construction Fee
Related Party Transaction [Line Items]
Percentage of development costs		5.00%
Property Management Fee
Related Party Transaction [Line Items]
Percentage of anchor portfolio revenue		1.00%
Acquisition Fee \| Asset Management Agreement
Related Party Transaction [Line Items]
Asset acquisition, price of acquisition, expected	$ 50
Acquisition Fee \| Minimum
Related Party Transaction [Line Items]
Percentage of purchase price		1.00%
Acquisition Fee \| Maximum
Related Party Transaction [Line Items]
Percentage of purchase price		0.50%
Disposition Fee \| Asset Management Agreement
Related Party Transaction [Line Items]
Asset acquisition, price of acquisition, expected	$ 50
Disposition Fee \| Minimum
Related Party Transaction [Line Items]
Percentage sales price		1.00%
Disposition Fee \| Maximum
Related Party Transaction [Line Items]
Percentage sales price		0.50%