Net Income and Loss per Share (Detail) - Common Stock Equivalents excluded from computation of Net Loss per Share	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Convertible Preferred Stock	162,372,288	9,472,340	162,372,288	9,472,340
Convertible debt	11,866,336	44,965,670	11,866,336	44,965,670
Common stock options	260,882,543	21,282,543	260,882,543	21,282,543
Common stock purchase warrants	241,021,747	5,481,119	241,021,747	5,481,119