SHAREHOLDERS' EQUITY (Summary of Stock Option Outstanding) (Details)	9 Months Ended
	Jun. 30, 2022 $ / shares shares	Jun. 30, 2022 $ / shares shares	Sep. 30, 2021 $ / shares shares	Sep. 30, 2020 $ / shares shares
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 5.15		$ 5.20	$ 3.42
Number of options | shares	7,852,061	7,852,061	6,803,230	5,309,584
Weighted average remaining contractual life (years)	7 years 9 months 25 days
Exercise Price $3.23 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 3.23
Number of options | shares	3,629,400	3,629,400
Weighted average remaining contractual life (years)	7 years 3 months 7 days
Exercise Price $3.59 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 3.59
Number of options | shares	26,667	26,667
Weighted average remaining contractual life (years)	7 years 3 months 18 days
Exercise Price $3.60 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 3.60
Number of options | shares	937,500	937,500
Weighted average remaining contractual life (years)	10 years 3 days
Exercise Price $3.81 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 3.81
Number of options | shares	185,816	185,816
Weighted average remaining contractual life (years)	6 years 7 months 13 days
Exercise Price $4.00 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 4.00
Number of options | shares	539,518	539,518
Weighted average remaining contractual life (years)	5 years 5 months 23 days
Exercise Price $4.67 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 4.67
Number of options | shares	183,511	183,511
Weighted average remaining contractual life (years)	7 years 4 months 2 days
Exercise Price $5.99 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 5.99
Number of options | shares	190,000	190,000
Weighted average remaining contractual life (years)	9 years 9 months 25 days
Exercise Price $7.00 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 7.00
Number of options | shares	1,475,146	1,475,146
Weighted average remaining contractual life (years)	8 years 5 months 12 days
Exercise Price $8.47 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 8.47
Number of options | shares	120,000	120,000
Weighted average remaining contractual life (years)	9 years 3 months 14 days
Exercise Price $9.76 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 9.76
Number of options | shares	50,000	50,000
Weighted average remaining contractual life (years)	9 years 7 months 20 days
Exercise Price $13.96 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 13.96
Number of options | shares	190,000	190,000
Weighted average remaining contractual life (years)	8 years 6 months 14 days
Exercise Price $29.63 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 29.63
Number of options | shares	100,000	100,000
Weighted average remaining contractual life (years)	8 years 9 months 29 days
Exercise Price $31.62 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares		$ 31.62
Number of options | shares	75,000	75,000
Weighted average remaining contractual life (years)	8 years 11 months 1 day
Exercise Price C$4.90 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares		$ 4.90
Number of options | shares	129,503	129,503
Weighted average remaining contractual life (years)	4 years 10 months 28 days
Exercise Price C$5.06 [Member]
SHAREHOLDERS' EQUITY
Stock options, Exercise price | $ / shares	$ 5.06
Number of options | shares	20,000	20,000
Weighted average remaining contractual life (years)	6 years 7 months 13 days