STOCK OPTIONS AND WARRANTS - Transactions involving stock options issued to employees (Details 1) (Employee Stock Options, Incentive Stock Plan 2005, USD $)	6 Months Ended
	Mar. 31, 2015
Employee Stock Options | Incentive Stock Plan 2005
Number of Shares
Outstanding at October 1, 2014	2,909,046
Granted	900,509
Exercised
Cancelled or expired	(661)
Outstanding at March 31, 2015	3,808,894
Vested at March 31, 2015	2,852,150
Non-vested at March 31, 2015	956,744
Weighted Average Exercise Price Per Share
Outstanding at October 1, 2014	$ 4.74
Granted	$ 2.86
Exercised
Cancelled or expired	$ (9.77)
Outstanding at March 31, 2015	$ 4.30
Vested at March 31, 2015	$ 3.99
Aggregate Intrinsic Value, Vested at March 31, 2015	$ 0.44
Aggregate Intrinsic Value, Non-vested at March 31, 2015	$ 0.19