Debt and Capital Lease Obligations Debt Covenants (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
May 04, 2013
Debt Disclosure [Abstract]
Debt covenant, inventory	$ 95.0
Debt covenant, liquidity	$ 15.0
Debt covenant, minimum excess availability	15.00%

Through our Secured Term Loan and Credit Agreement we are required to maintain a minimum excess availability of 15 percent of our borrowing base.

No definition available.

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Namespace Prefix:	cwtr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration