WARRANTS - Transactions involving warrants (Details)	3 Months Ended
	Dec. 31, 2022 $ / shares shares
Number of Shares
Balance at October 1, 2022 | shares	7,313,963
Cancelled or expired | shares	(18,375)
Balance at December 31, 2022 | shares	7,295,588
Weighted Average Exercise Price Per Share
Balance at October 1, 2022 | $ / shares	$ 3.68
Cancelled or expired | $ / shares	17.60
Balance at December 31, 2022 | $ / shares	$ 3.65