Accrued Expenses - Narrative (Details)	May. 31, 2015
Payables and Accruals [Abstract]
Maximum percentage of total current liabilities at which all other liabilities did not exceed (percent)	5.00%

Maximum percentage of current liabilities at which all other liabilities individually did not exceed.

No definition available.

Name:	caw_MaximumPercentageOfCurrentLiabilities
Namespace Prefix:	caw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant