Summary of Significant Accounting Policies (Details 3)	12 Months Ended
Sep. 27, 2014
Minimum
Prepublication costs
Estimated useful life	3 years
Maximum
Prepublication costs
Estimated useful life	4 years

Represents the estimated useful life of prepublication costs.

No definition available.

Name:	crrc_PrepublicationCostsUsefulLife
Namespace Prefix:	crrc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration