IMPAIRMENT CHARGES (Details) (USD $)	12 Months Ended
Dec. 28, 2013 item	Dec. 29, 2012 item	Dec. 31, 2011 item
IMPAIRMENT CHARGES
Term of treasury note	10 years
Number of underperforming stores	27	26	14
Impairment charge	$ 1,000,000	$ 1,100,000	$ 719,000

The impairment charge against earnings from the write down of underperforming stores.

No definition available.

Name:	cach_AssetImpairmentChargesUnderperformingStores
Namespace Prefix:	cach_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration