Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Apr. 30, 2013	Jul. 31, 2012
Statement Of Financial Position [Abstract]
Preferred stock par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	180,000,000	180,000,000
Common stock, shares issued	125,436,992	124,393,700
Common stock, shares outstanding	125,436,992	124,393,700

Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

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