SUMMARY OF ACCOUNTING POLICIES - Summary of potential stock issuances under various options, and warrants (Details) - shares	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net loss per share	17,591,994	14,748,446
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net loss per share	12,271,686	9,548,969
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted net loss per share	5,320,308	5,199,477