STOCK OPTIONS AND WARRANTS - Transactions involving warrants (Details)	6 Months Ended
	Mar. 31, 2019 $ / shares shares
Number of Shares
Balance at October 1, 2018 | shares	12,208,527
Granted | shares	9,035,000
Exercised | shares	(1,623,100)
Cancelled or expired | shares	(2,735,000)
Balance at March 31, 2019 | shares	16,885,427
Weighted Average Exercise Price Per Share
Balance at October 1, 2018 | $ / shares	$ 3.24
Granted | $ / shares	0.48
Exercised | $ / shares	0.44
Cancelled or expired | $ / shares	3.00
Balance at March 31, 2019 | $ / shares	$ 2.24