XML 186 R32.htm IDEA: XBRL DOCUMENT
v3.22.1

Investments in Real Estate Ventures - Narrative (Detail) ft² in Thousands, $ in Millions | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 31, 2021 unit ft² | Dec. 31, 2019 ft² | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | Feb. 29, 2020 USD ($) | Apr. 30, 2019
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Proceed from sale of investment, percentage of profit |  |  |  |  |  | 50.00%
Proportionate share of net income and distributions, amount | $ |  |  | $ (0.1) | $ 0.0 |  |
Hartford Investment | Affiliated Entity |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of ownership interest |  |  | 2.50% |  |  |
BLVD Forty Four | Affiliated Entity |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of ownership interest |  |  | 5.00% |  |  |
BLVD Ansel | Affiliated Entity |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of ownership interest |  |  | 5.00% |  |  |
The Hartford |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Number of square foot | ft² |  | 211 |  |  |  |
Percentage of lease to tenants |  | 76.00% |  |  |  |
Maximum borrowing capacity | $ |  |  |  |  | $ 87.0 |
BLVD Forty Four |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Number of square foot | ft² | 16 |  |  |  |  |
Number of units in property | unit | 263 |  |  |  |  |

X
- Definition Number of Square Foot + References No definition available. + Details
Name: | chci_NumberOfSquareFoot
Namespace Prefix: | chci_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Units in Property + References No definition available. + Details
Name: | chci_NumberOfUnitsInProperty
Namespace Prefix: | chci_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of Lease to Tenants + References No definition available. + Details
Name: | chci_PercentageOfLeaseToTenants
Namespace Prefix: | chci_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceed from Sale of Investment, Percentage of Profit + References No definition available. + Details
Name: | chci_ProceedFromSaleOfInvestmentPercentageOfProfit
Namespace Prefix: | chci_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Proportionate Share of Net Income and Distributions, Amount + References No definition available. + Details
Name: | chci_ProportionateShareOfNetIncomeAndDistributionsAmount
Namespace Prefix: | chci_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=chci_HartfordInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_AffiliatedEntityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=chci_BLVDFortyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=chci_BLVDAnselMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chci_TheHartfordMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chci_BLVDFortyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |