Note 8 - Post Employment Benefit Obligations (Details) - Pension Liability (USD $) In Thousands, unless otherwise specified	Mar. 01, 2014	Nov. 30, 2013
Note 8 - Post Employment Benefit Obligations (Details) - Pension Liability [Line Items]
Post employment benefit obligations	$ 10,732	$ 11,146
Supplemental Employee Retirement Plan, Defined Benefit [Member]
Note 8 - Post Employment Benefit Obligations (Details) - Pension Liability [Line Items]
Accrued compensation and benefits	810	810
Post employment benefit obligations	8,706	8,965
Total pension liability	9,516	9,775
Unfunded Deferred Compensation Plan [Member]
Note 8 - Post Employment Benefit Obligations (Details) - Pension Liability [Line Items]
Accrued compensation and benefits	523	373
Post employment benefit obligations	2,026	2,182
Total pension liability	$ 2,549	$ 2,555