Costs Incurred, Acquisition Of Property

No definition available.

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- Definition

Percentage Of Ownership Acquired

+ References

No definition available.

+ Details

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- Definition

Net rentable area for properties owned.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash outflow for the payment of debt classified as other, maturing after one year or the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cmct_OfficePropertyLosAngelesCaliforniaMember
Namespace Prefix:
Data Type:	na
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SUBSEQUENT EVENTS (Details)	1 Months Ended		6 Months Ended
SUBSEQUENT EVENTS (Details)	Aug. 09, 2021 USD ($)	Jul. 31, 2021 USD ($) ft²	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Subsequent Event [Line Items]
Repayments of debt			$ 94,351,000	$ 10,370,000
Subsequent Event \| Revolving Credit Facility \| Line of Credit
Subsequent Event [Line Items]
Repayments of debt	$ 25,000,000.0
Subsequent Event \| Office Property, Los Angeles, California
Subsequent Event [Line Items]
Percentage of ownership acquired		100.00%
Purchase price		$ 2,900,000
Transaction costs incurred and capitalized		$ 44,000
Square Feet \| ft²		4,900