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Assets and Liabilities Classified as Discontinued Operations (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
May 31, 2014
Jun. 01, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Document Period End Date May 31, 2014  
Inventories $ 18 $ 303
Discontinued operations-Assets 18 303
Accrued liabilities-current 7 245
Disposal Group, Including Discontinued Operation, Other Noncurrent Liabilities 130 0
Discontinued operations-Liabilities $ 137 $ 245