Condensed Consolidated Balance Sheets [Parenthetical] (USD $)	Dec. 31, 2012	Sep. 30, 2012
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Preferred stock, liquidation preference per share (in dollars per share)	$ 100	$ 100
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	182,265,845	164,700,150
Common stock, shares outstanding	182,265,845	164,700,150