WARRANTS - Transactions involving warrants (Details)	6 Months Ended
	Mar. 31, 2020 $ / shares shares
Number of Shares
Balance at October 1, 2019 | shares	263,592
Granted | shares	2,636,125
Exercised | shares	(566,950)
Cancelled or expired | shares	(211,012)
Balance at March 31, 2020 | shares	2,121,755
Weighted Average Exercise Price Per Share
Balance at October 1, 2019 | $ / shares	$ 131.12
Granted | $ / shares	5.25
Exercised | $ / shares	5.25
Cancelled or expired | $ / shares	135.01
Balance at March 31, 2020 | $ / shares	$ 7.98