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Discontinued Operations (Details) - Schedule of assets and liabilities of the discontinued operations (USD $)
In Millions, unless otherwise specified
Nov. 30, 2013
May 31, 2013
Nov. 30, 2012
Schedule of assets and liabilities of the discontinued operations [Abstract]      
Accounts receivable, net $ 0 $ 0 $ 0
Other assets 0.4 0.4 8.3
Current assets of discontinued operations 0.4 0.4 8.3
Accrued expenses and other current liabilities 1.2 1.3 2.0
Current liabilities of discontinued operations $ 1.2 $ 1.3 $ 2.0