Commitments and Contingent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 01, 2012
Future minimum rental payments under noncancelable operating leases
Total minimum payments, Remainder of Fiscal 2013	$ 1,825
Total minimum payments, Fiscal 2014	7,083
Total minimum payments, Fiscal 2015	5,996
Total minimum payments, Fiscal 2016	5,842
Total minimum payments, Fiscal 2017	4,054
Total minimum payments, Thereafter	5,457
Total	$ 30,257