Note 8 - Post Employment Benefit Obligations (Details) - Pension Liability (USD $) In Thousands, unless otherwise specified	May 31, 2014	Nov. 30, 2013
Note 8 - Post Employment Benefit Obligations (Details) - Pension Liability [Line Items]
Post employment benefit obligations	$ 10,708	$ 11,146
Supplemental Employee Retirement Plan [Member]
Note 8 - Post Employment Benefit Obligations (Details) - Pension Liability [Line Items]
Accrued compensation and benefits	810	810
Post employment benefit obligations	8,675	8,965
Total pension liability	9,485	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	2,034	2,182
Total pension liability	$ 2,557	$ 2,555