Commitments and Contingent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 01, 2012
Future minimum rental payments under noncancelable operating leases
Total minimum payments, Remainder of Fiscal 2013	$ 3,448
Total minimum payments, Fiscal 2014	6,183
Total minimum payments, Fiscal 2015	5,358
Total minimum payments, Fiscal 2016	5,247
Total minimum payments, Fiscal 2017	3,471
Total minimum payments, Thereafter	4,144
Total	$ 27,851