Note 11 - Asset Disposition and Accured Lease Exit Costs (Details) (Land and Building [Member], Other Current Assets [Member], USD $) In Thousands, unless otherwise specified	May 31, 2014
Land and Building [Member] | Other Current Assets [Member]
Note 11 - Asset Disposition and Accured Lease Exit Costs (Details) [Line Items]
Disposal Group, Including Discontinued Operation, Assets	$ 3,733