Balance Sheets (Parenthetical) (USD $)	Oct. 31, 2011	Apr. 30, 2011
Stockholders' equity
Preferred stock shares authorized	10,000,000	10,000,000
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, authorized	400,000,000	400,000,000
Common stock, issued	23,857,671	23,393,307
Common stock, outstanding	23,857,671	23,393,307