BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (PMC Commercial, USD $)	0 Months Ended
Mar. 11, 2014	Mar. 31, 2015
PMC Commercial
Loans receivable
Discount on acquisition	$ 33,907,000
Acquisition discount		$ 25,201,000

Represents the information pertaining to discount adjustment between carrying value of our loans and estimated fair market value.

No definition available.

Name:	cmct_BusinessAcquisitionDiscountAdjustmentRecognizedAsDifferenceBetweenCarryingValueOfLoansAndEstimatedFairMarketValue
Namespace Prefix:	cmct_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration