CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jul. 31, 2011	Apr. 30, 2011
ASSETS
Property and equipment, accumulated depreciation	$ 163,474	$ 140,804
Intangible assets, accumulated amortization	$ 38,675	$ 30,940
Stockholders' equity
Preferred Series A stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred Series A stock, shares authorized (in shares)	25,000,000	25,000,000
Preferred Series A stock, shares issued (in shares)	0	0
Preferred Series A stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	975,000,000	975,000,000
Common stock, shares issued (in shares)	59,137,722	57,089,408
Common stock, shares outstanding (in shares)	59,137,722	57,089,408