Commitments and Contingent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2013
Future minimum rental payments under noncancelable operating leases
Total minimum payments, Remainder of Fiscal 2014	$ 2,982
Total minimum payments, Fiscal 2015	8,895
Total minimum payments, Fiscal 2016	8,377
Total minimum payments, Fiscal 2017	6,642
Total minimum payments, Fiscal 2018	5,292
Total minimum payments, Thereafter	9,038
Total	$ 41,226