STOCK OPTIONS AND WARRANTS - Transactions involving stock options issued to employees (Details 1) - Employee Stock Option - Incentive Stock Plan 2005	6 Months Ended
	Mar. 31, 2019 USD ($) $ / shares shares
Number of Shares
Outstanding at October 1, 2018 | shares	6,183,214
Granted | shares	1,578,570
Exercised | shares	0
Cancelled or expired | shares	(1,303,590)
Outstanding at March 31, 2019 | shares	6,458,194
Vested at March 31, 2019 | shares	6,338,547
Non-vested at March 31, 2019 | shares	119,647
Weighted Average Exercise Price Per Share
Outstanding at October 1, 2018 | $ / shares	$ 3.13
Granted | $ / shares	4.48
Exercised | $ / shares	0
Cancelled or expired | $ / shares	(5.63)
Outstanding at March 31, 2019 | $ / shares	2.95
Vested at March 31, 2019 | $ / shares	2.96
Non-vested at March 31, 2019 | $ / shares	$ 2.54
Aggregate Intrinsic Value, Vested | $	$ 0
Aggregate Intrinsic Value, Non-vested | $	$ 0
Weighted Average Contractual Life (years), Outstanding	6 years 8 months 19 days
Weighted Average Contractual Life (years), Vested	6 years 8 months 16 days