FAIR VALUE - Fair Value Measurements of Common Stock Warrants Using Significant Unobservable Inputs (Level 3) (Details) (Common Stock Warrants, USD $)	9 Months Ended
	Jun. 30, 2013		Jun. 30, 2012
Common Stock Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at October 1,
Issuance of Series A and B Warrants	1,181,324
Adjustment resulting from change in value recognized in earnings	6,145,229	[1]		[1]
Reclassification to equity upon exercise	(7,326,553)
Balance at June 30,

[1] Adjustment resulting from change in fair value is the amount of total gains or losses for the period attributable to the change in unrealized gains or losses relating to liabilities held at the reporting date. The unrealized gain or loss is recorded in change in fair value of warrant liability in the accompanying condensed consolidated statements of operations.