Agreement additional extension term.

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- Definition

Agreement Cost-Plus And Market Rate Fee, Multiply, Termination Fee Payment

+ References

No definition available.

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- References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

Agreement notice period required for non renewal.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

Business Management Agreements Renewal Term

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Entitlement Success Fee, Earned, Economic Value Percentage

+ References

No definition available.

+ Details

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- Definition

Future Lease Payment Percentage Of Leasing Fee

+ References

No definition available.

+ Details

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

- Definition

Number of installments of fee payment.

+ References

No definition available.

+ Details

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

- Definition

Number of Square Foot

+ References

No definition available.

+ Details

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Data Type:	dtr-types:areaItemType
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- Definition

Percentage of membership interest owned by company and partners.

+ References

No definition available.

+ Details

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

- Definition

Property management agreements initial term.

+ References

No definition available.

+ Details

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Namespace Prefix:	chci_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Property management agreements renewal term.

+ References

No definition available.

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

- Definition

Related party transaction aggregate fee payable.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Related party transaction fee payable in installments.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Section 25
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-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

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Balance Type:	credit
Period Type:	instant

- Definition

Term of lessee's operating lease, 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
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-Section 50
-Paragraph 3
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-Publisher FASB
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Data Type:	xbrli:durationItemType
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- Definition

Amount of fee payable for management of fund or trust.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(12)(a))
-Publisher FASB
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Balance Type:	credit
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- 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
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Related Party Transactions - Narrative (Detail) $ in Millions					6 Months Ended	25 Months Ended
	Feb. 01, 2024	Jun. 13, 2022	Jul. 01, 2019 USD ($)	Apr. 30, 2019 USD ($) installment	Jun. 30, 2024 USD ($)	Nov. 30, 2022 ft²	Dec. 31, 2023	Jun. 30, 2022 USD ($)	Nov. 30, 2020	Feb. 07, 2020
Comstock 41
Related Party Transaction [Line Items]
Business combination, acquisition related costs					$ 0.1
Entitlement success fee, earned, economic value percentage							0.25
Business Management Agreement
Related Party Transaction [Line Items]
Business management agreements renewal term	1 year		1 year
Management fee payable			$ 0.4
Related party
Related Party Transaction [Line Items]
Operating lease, term of contract						5 years			10 years
Related party \| DWC Operating Agreement
Related Party Transaction [Line Items]
Percentage of membership interest owned by company and partners										100.00%
Related party \| Residential Property Management Agreements
Related Party Transaction [Line Items]
Property management agreements initial term					1 year
Property management agreements renewal term					1 year
Related party \| Lease Procurement Agreement \| Minimum
Related Party Transaction [Line Items]
Future lease payment percentage of leasing fee					1.00%
Related party \| Lease Procurement Agreement \| Maximum
Related Party Transaction [Line Items]
Future lease payment percentage of leasing fee					2.00%
Related party \| Lease Expansion Agreement
Related Party Transaction [Line Items]
Number of square foot \| ft²						3,778
Related party \| 2022 Amended Asset Management Agreement
Related Party Transaction [Line Items]
Fixed annual payment								$ 1.0
Agreement additional extension term (in years)		1 year
Agreement notice period required for non-renewal		180 days
Agreement notice period after effective date for termination		24 months
Agreement cost-plus and market rate fee, multiply, termination fee payment		2
Related party \| Business Management Agreement
Related Party Transaction [Line Items]
Aggregate fee payable				$ 0.9
Number of installments of fee payment \| installment				15
Fee payable in installments				$ 0.1