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Note 21 - Commitments and Contingencies (Detail) (USD $)	3 Months Ended	9 Months Ended		12 Months Ended
	Aug. 19, 2011	May 31, 2012	May 31, 2012	May 31, 2011	May 31, 2010
Operating Leases, Rent Expense	$ 900,000		$ 3,100,000	$ 4,300,000	$ 3,800,000
Purchase Commitment, Remaining Minimum Amount Committed		23,300,000	23,300,000
Litigation Settlement, Expense		$ 22,000,000	$ 22,000,000

The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity has agreed to expend funds to procure goods or services from one or more suppliers, other than under a long-term purchase commitment or an unconditional purchase obligation.

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