CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)	Jul. 31, 2011	Apr. 30, 2011
Preferred stock par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares outstanding	0	0
Common stock par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	325,000,000	325,000,000
Common stock, shares outstanding	71,749,718	69,837,142