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CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)	Nov. 30, 2012	May 31, 2012	Nov. 30, 2011
Preferred stock par value	$ 1.00	$ 1.00	$ 1.00
Common Stock, par value per share	$ 0.01	$ 0.01	$ 0.01
Common Class A [Member]
Common Stock, par value per share	$ 0.01	$ 0.01	$ 0.01

- Definition

Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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