BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES - Potential stock issuances under various options, and warrants (Details) - shares	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES
Antidilutive securities excluded from the computation of diluted net loss per share	7,707,465	8,377,018
Warrants
BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES
Antidilutive securities excluded from the computation of diluted net loss per share	5,220,588	7,313,963
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
Stock options
BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES
Antidilutive securities excluded from the computation of diluted net loss per share	2,204,237	1,063,055