WARRANTS, STOCK OPTIONS AND RESTRICTED STOCK UNITS - Transactions involving warrants (Details)	12 Months Ended
	Sep. 30, 2023 $ / shares shares
Number of Shares
Balance at October 1, 2022 | shares	7,313,963
Cancelled or expired | shares	(2,093,375)
Balance, September 30, 2023 | shares	5,220,588
Weighted Average Exercise Price Per Share
Balance at October 1, 2022 | $ / shares	$ 3.68
Cancelled or expired | $ / shares	(4.12)
Balance, September 30, 2023 | $ / shares	$ 3.50