Concentration of Risk - Summary of Customers Accounted for More than Five Percent of Net Sales (Details)

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Concentration of Risk - Summary of Customers Accounted for More than Five Percent of Net Sales (Details)	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Walmart
Concentration Risk [Line Items]
Percentage of Company's net saves accounted by customer	47.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_WalmartMember	43.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_WalmartMember	35.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_WalmartMember
Walgreen
Concentration Risk [Line Items]
Percentage of Company's net saves accounted by customer	6.50%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_WalgreenMember	13.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_WalgreenMember	12.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_WalgreenMember
Rite Aid
Concentration Risk [Line Items]
Percentage of Company's net saves accounted by customer			8.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_RiteAidMember
CVS
Concentration Risk [Line Items]
Percentage of Company's net saves accounted by customer			9.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_CVSMember
Foreign Sales
Concentration Risk [Line Items]
Percentage of Company's net saves accounted by customer	13.60%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_ForeignSalesMember	5.00%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_ForeignSalesMember	4.50%caw_RevenueInformationSignificantCustomersWiseNetRevenuePercentage / us-gaap_MajorCustomersAxis = caw_ForeignSalesMember