STOCK OPTIONS AND WARRANTS - Transactions involving stock options issued to employees and consultants (Details 1) - Stock Options - 2005 Incentive Stock Plan (the "Incentive Plan") - USD ($)	6 Months Ended
	Mar. 31, 2017
Number of Shares
Outstanding at October 1, 2016	4,403,234
Granted	914,000
Exercised
Cancelled or expired	(117,757)
Outstanding at March 31, 2017	5,199,477
Vested at March 31, 2017	3,809,116
Non-vested at March 31, 2017	1,390,361
Weighted Average Exercise Price Per Share
Outstanding at October 1, 2016	$ 4.08
Granted	2.23
Exercised
Cancelled or expired	(4.36)
Outstanding at March 31, 2017	3.76
Vested at March 31, 2017	$ 3.93
Aggregate Intrinsic Value, Vested at March 31, 2017
Aggregate Intrinsic Value, Non-vested at March 31, 2017
Weighted Average Contractual Life (years) vested at March 31, 2017	4 years 5 months 27 days
Weighted Average Contractual Life (years), Non-vested at March 31, 2017	7 years 9 months 4 days