Common Stock Warrants and Stock Based Compensation (Details) (USD $)	6 Months Ended
	Mar. 31, 2014
Common Stock Warrants And Stock Based Compensation Details
Outstanding shares, Beginning of period	51,752,000
Options granted, shares	149,438,000
Options exercised
Options forfeited, shares	(48,958,000)
Outstanding shares, End of period	152,232,000
Vested and expected to vest, End of period	129,398,000
Exercisable, End of period	101,432,000
Outstanding weighted average exercise price, beginning	$ 0.20
Options granted, weighted average exercise price	$ 0.04
Options exercised, weighted average exercise price
Options forfeited, weighted average exercise price	$ 0.10
Outstanding weighted average exercise price, ending	$ 0.07
Vested and expected to vest, weighted average exercise price, End of period	$ 0.07
Exercisable, weighted average exercise price, End of period	$ 0.08
Outstanding at beginning of period	7 years 8 months 12 days
Options granted, shares	9 years 7 months 6 days
Options forfeited, shares	8 years 3 months 18 days
Outstanding shares, End of period	9 years 2 months 12 days
Vested and expected to vest, End of period	9 years 2 months 12 days
Exercisable, End of period	9 years