COMMITMENTS AND CONTINGENCIES (Details) (USD $)	Jun. 29, 2013	Dec. 29, 2012	Jun. 30, 2012
COMMITMENTS AND CONTINGENCIES
Amount of guarantees, subleases or assigned lease obligations	$ 0	$ 0	$ 0

Represents amount of guarantees, subleases or assigned lease obligations as of the balance sheet date.

No definition available.

Name:	cach_LossContingencyGuaranteesSubleasesOrAssignedLeaseObligations
Namespace Prefix:	cach_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant