C. STOCKHOLDERS EQUITY (Details 3)	6 Months Ended
	Mar. 31, 2020 $ / shares shares
Series N
STOCKHOLDERS' EQUITY
Issue date	8/18/2008
Shares issuable upon exercise of warrant | shares	85,339
Exercise price | $ / shares	$ 3.00
Expiration date	2/18/2021
Series V
STOCKHOLDERS' EQUITY
Issue date	5/28/2015
Shares issuable upon exercise of warrant | shares	810,127
Exercise price | $ / shares	$ 19.75
Expiration date	5/28/2020
Series UU
STOCKHOLDERS' EQUITY
Issue date	6/11/2018
Shares issuable upon exercise of warrant | shares	154,810
Exercise price | $ / shares	$ 2.80
Expiration date	6/11/2020
Series W
STOCKHOLDERS' EQUITY
Issue date	10/28/2015
Shares issuable upon exercise of warrant | shares	688,930
Exercise price | $ / shares	$ 16.75
Expiration date	10/28/2020
Series X
STOCKHOLDERS' EQUITY
Issue date	1/13/2016
Shares issuable upon exercise of warrant | shares	120,000
Exercise price | $ / shares	$ 9.25
Expiration date	1/13/2021
Series Y
STOCKHOLDERS' EQUITY
Issue date	2/15/2016
Shares issuable upon exercise of warrant | shares	26,000
Exercise price | $ / shares	$ 12.00
Expiration date	2/15/2021
Series ZZ
STOCKHOLDERS' EQUITY
Issue date	5/23/2016
Shares issuable upon exercise of warrant | shares	20,000
Exercise price | $ / shares	$ 13.75
Expiration date	5/18/2021
Series BB
STOCKHOLDERS' EQUITY
Issue date	8/26/2016
Shares issuable upon exercise of warrant | shares	16,000
Exercise price | $ / shares	$ 13.75
Expiration date	8/22/2021
Series Z
STOCKHOLDERS' EQUITY
Issue date	5/23/2016
Shares issuable upon exercise of warrant | shares	264,000
Exercise price | $ / shares	$ 13.75
Expiration date	11/23/2021
Series CC
STOCKHOLDERS' EQUITY
Issue date	12/8/2016
Shares issuable upon exercise of warrant | shares	153,643
Exercise price | $ / shares	$ 5.00
Expiration date	12/8/2021
Series HH
STOCKHOLDERS' EQUITY
Issue date	2/23/2017
Shares issuable upon exercise of warrant | shares	200
Exercise price | $ / shares	$ 3.13
Expiration date	2/16/2022
Series AA
STOCKHOLDERS' EQUITY
Issue date	8/26/2016
Shares issuable upon exercise of warrant | shares	200,000
Exercise price | $ / shares	$ 13.75
Expiration date	2/22/2022
Series MM
STOCKHOLDERS' EQUITY
Issue date	6/22/2017
Shares issuable upon exercise of warrant | shares	893,491
Exercise price | $ / shares	$ 1.86
Expiration date	6/22/2022
Series NN
STOCKHOLDERS' EQUITY
Issue date	7/24/2017
Shares issuable upon exercise of warrant | shares	375,545
Exercise price | $ / shares	$ 2.52
Expiration date	7/24/2022
Series OO
STOCKHOLDERS' EQUITY
Issue date	7/31/2017
Shares issuable upon exercise of warrant | shares	10,000
Exercise price | $ / shares	$ 2.52
Expiration date	7/31/2022
Series RR
STOCKHOLDERS' EQUITY
Issue date	10/30/2017
Shares issuable upon exercise of warrant | shares	457,116
Exercise price | $ / shares	$ 1.65
Expiration date	10/30/2022
Series SS
STOCKHOLDERS' EQUITY
Issue date	12/19/2017
Shares issuable upon exercise of warrant | shares	365,538
Exercise price | $ / shares	$ 2.09
Expiration date	12/18/2022
Series TT
STOCKHOLDERS' EQUITY
Issue date	2/5/2018
Shares issuable upon exercise of warrant | shares	381,564
Exercise price | $ / shares	$ 2.24
Expiration date	2/5/2023
Series VV
STOCKHOLDERS' EQUITY
Issue date	7/2/2018
Shares issuable upon exercise of warrant | shares	55,000
Exercise price | $ / shares	$ 1.75
Expiration date	1/2/2024
Consultants
STOCKHOLDERS' EQUITY
Issue date	7/28/2017
Shares issuable upon exercise of warrant | shares	10,000
Exercise price | $ / shares	$ 2.18
Expiration date	7/27/2027