STOCK OPTIONS AND WARRANTS - Transactions involving stock options issued to employees and consultants (Details 1) - Stock Options - 2005 Incentive Stock Plan (the "Incentive Plan")	6 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares
Number of Shares
Outstanding at October 1, 2017	5,333,227
Granted	556,147
Exercised	0
Cancelled or expired	(569,066)
Outstanding at March 31, 2018	5,320,308
Vested at March 31, 2018	4,527,351
Non-vested at March 31, 2018	792,957
Weighted Average Exercise Price Per Share
Outstanding at October 1, 2017 | $ / shares	$ 3.71
Granted | $ / shares	1.57
Exercised | $ / shares	0.00
Cancelled or expired | $ / shares	(3.23)
Outstanding at March 31, 2018 | $ / shares	3.53
Vested at March 31, 2018 | $ / shares	$ 3.82
Aggregate Intrinsic Value, Vested at March 31, 2018 | $	$ 0
Aggregate Intrinsic Value, Non-vested at March 31, 2018 | $	$ 0
Weighted Average Contractual Life (years), Outstanding at March 31, 2018	4 years 1 month 28 days
Weighted Average Contractual Life (years), Vested at March 31, 2018	3 years 10 months 2 days