Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2011	Sep. 30, 2010
Stockholders' equity:
Preferred stock, par value	$ 0.0001	$ 0.0001
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, shares authorized	200,000,000	200,000,000
Common stock, shares issued	124,186,031	95,965,572
Common stock, shares outstanding	124,186,031	95,965,572