Represents the number of shares of equity interests received pursuant to the merger agreement.

No definition available.

Name:	cmct_BusinessAcquisitionEquityInterestsNumberOfSharesReceived
Namespace Prefix:	cmct_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of shares to be issued on conversion of each preferred share.

+ References

No definition available.

+ Details

Name:	cmct_BusinessAcquisitionNumberOfSharesToBeIssuedOnConversionOfEachPreferredShare
Namespace Prefix:	cmct_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of shares to be issued on conversion of preferred shares.

+ References

No definition available.

+ Details

Name:	cmct_BusinessAcquisitionSharesIssuableUponConversionOfPreferredShares
Namespace Prefix:	cmct_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of shares to be issued on conversion of preferred shares expressed as a percentage of outstanding shares.

+ References

No definition available.

+ Details

Name:	cmct_BusinessAcquisitionSharesIssuableUponConversionOfPreferredSharesPercentage
Namespace Prefix:	cmct_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the per share amount of a special cash dividend paid to be issued to shareholders of record at the close of the business day prior to the closing of transactions.

+ References

No definition available.

+ Details

Name:	cmct_BusinessAcquisitionSpecialCashDividendDeclaredPerShare
Namespace Prefix:	cmct_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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

MERGER (Details) (PMC Commercial, USD $)			0 Months Ended
MERGER (Details) (PMC Commercial, USD $)	Mar. 11, 2014	Dec. 31, 2013	Mar. 11, 2014 REIT and affiliates	Mar. 11, 2014 REIT and affiliates Common shares	Mar. 11, 2014 REIT and affiliates Preferred shares
Merger
Shares of beneficial interest received				22,000,003	65,028,571
Number of shares to be issued on conversion of each preferred share			7
Number of shares to be issued on conversion of preferred shares			477,200,000
Number of shares to be issued on conversion of preferred shares expressed as a percentage of outstanding shares			97.80%
Special cash dividend to be issued to shareholders of record at the close of the business day prior to the closing of transactions (in dollars per share)	$ 5.50
Merger-related costs		$ 3,670,000