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Discontinued Operations - Summary of Assets and Liabilities of Discontinued Operations (Detail) - USD ($)
$ in Thousands
Aug. 31, 2015
May. 31, 2015
Current Assets:    
Accounts receivable $ 87 $ 30
Inventories 50 110
Current Assets, Total 137 140
Current Liabilities:    
Accounts payable, trade 40 8
Accrued marketing programs   37
Other accrued liabilities 68 59
Current Liabilities, Total $ 108 $ 104