Stock Options (Details)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Employee Stock Options [Member]
Summary of assumptions used to estimate the fair value of the stock option grants
Expected term (years)	3 years	3 years 6 months
Expected volatility	89.43%	57.57%
Risk-free interest rate	0.37%	0.40%
Expected dividends	0.00%	0.00%
Non-Employee Stock Options [Member]
Summary of assumptions used to estimate the fair value of the stock option grants
Expected term (years)	8 years 9 months 18 days	10 years
Expected volatility	89.43%
Expected volatility, Minimum		57.57%
Expected volatility, Maximum		71.34%
Risk-free interest rate	1.55%
Risk-free interest rate, Minimum		1.96%
Risk-free interest rate, Maximum		2.03%
Expected dividends	0.00%	0.00%