BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES - Potential stock issuances under various options, and warrants (Details) - shares	6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES
Antidilutive securities excluded from the computation of diluted net loss per share	9,784,564	3,307,577
Warrants
BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES
Antidilutive securities excluded from the computation of diluted net loss per share	7,295,588	2,239,963
Stock options
BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES
Antidilutive securities excluded from the computation of diluted net loss per share	2,206,336	1,067,614
Restricted Stock Units
BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES
Antidilutive securities excluded from the computation of diluted net loss per share	282,640