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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Key Money (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Accounting Policies [Abstract]
Deferred key money	$ 2,300,000	$ 0
Deferred key money, accumulated amortization	$ 21,000

X

- Definition

Deferred Key Money

+ References

No definition available.

+ Details

Name:	cmct_DeferredKeyMoney
Namespace Prefix:	cmct_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Deferred Key Money, Accumulated Amortization

+ References

No definition available.

+ Details

Name:	cmct_DeferredKeyMoneyAccumulatedAmortization
Namespace Prefix:	cmct_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration