Certain Significant Estimates (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Oct. 31, 2014
Certain Significant Estimates [Abstract]
Change in estimate for allowance for bad debts	$ 0.2

Reflects a change in the estimate for valuation allowance for receivables due a company that are expected to be uncollectable.

No definition available.

Name:	chmp_ChangeInEstimateForAllowanceForBadDebts
Namespace Prefix:	chmp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration