BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES - Summary of potential stock issuances under various options, and warrants (Details) - shares	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted net loss per share	1,197,753	1,605,821
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted net loss per share	745,268	1,213,501
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted net loss per share	452,485	321,357
Secured convertible note
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the computation of diluted net loss per share	0	70,963