XML 39 R29.htm IDEA: XBRL DOCUMENT
v3.25.3

Company Overview (Details) | Sep. 30, 2025 subsidiary
--- | ---
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Number of subsidiaries | 4

X
- Definition Number of Subsidiaries + References No definition available. + Details
Name: | chci_NumberOfSubsidiaries
Namespace Prefix: | chci_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration