LIQUIDITY AND MANAGEMENT'S PLAN (Detail Textuals) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 20, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2017	Sep. 30, 2016
Liquidity And Management Plan [Line Items]
Accumulated deficit		$ (242,003,077)		$ (242,003,077)		$ (236,673,155)
Net loss		(2,146,209)	$ (3,428,856)	(5,329,922)	$ (7,390,240)
Negative operating cash flow				(3,279,751)	(4,699,015)
Working capital		3,877,941		3,877,941
Cash and cash equivalents		$ 3,709,402	$ 4,020,412	$ 3,709,402	$ 4,020,412	$ 2,959,781	$ 4,479,274
Securities Purchase Agreement | Private placement
Liquidity And Management Plan [Line Items]
Common stock issued in private placement, net of offering costs (in shares)	2,735,000
Share price (in dollars per share)	$ 1.75
Number of common stock called by warrants	2,735,000
Aggregate gross proceeds from Registered Direct Offering	$ 4,786,250
Net proceeds from sale of Registered Direct Offering	$ 4,200,000