Note 8 - Post-Employment Benefit Obligations (Details) - Pension Liability (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013	Nov. 24, 2012
Note 8 - Post-Employment Benefit Obligations (Details) - Pension Liability [Line Items]
Post employment benefit obligations	$ 11,118	$ 11,577
Supplemental Employee Retirement Plan, Defined Benefit [Member]
Note 8 - Post-Employment Benefit Obligations (Details) - Pension Liability [Line Items]
Other accrued liabilities	859	843
Post employment benefit obligations	8,548	8,962
Total pension liability	$ 9,407	$ 9,805