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Paycheck Protection Plan Loan (Details) - Paycheck Protection Program, CARES Act - USD ($)	1 Months Ended
	Aug. 31, 2021	Apr. 30, 2020
Unusual or Infrequent Item, or Both [Line Items]
PPP loan proceeds, CARES Act		$ 1,954,000
Forecast
Unusual or Infrequent Item, or Both [Line Items]
Principal and Interest payments, CARES Act	$ 82,671

X

- Definition

Long-term Debt, Principal And Interest Payments, CARES Act

+ References

No definition available.

+ Details

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Namespace Prefix:	chci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

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Period Type:	duration

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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

No definition available.

+ Details

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- Details

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- Details

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