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SHAREHOLDERS' EQUITY (Summary of Stock Option Outstanding) (Details) | 9 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 $ / shares shares | Jun. 30, 2021 $ / shares shares | Sep. 30, 2020 $ / shares shares | Sep. 30, 2019 $ / shares shares
SHAREHOLDERS' EQUITY |  |  |  |
Stock options, Exercise price | $ / shares | $ 5.20 |  | $ 3.42 | $ 4.59
Number of options | shares | 6,803,230 | 6,803,230 | 5,309,584 | 1,122,461
Weighted average remaining contractual life (years) | 8 years 4 months 24 days |  |  |
Exercise Price $2.20 [Member] |  |  |  |
SHAREHOLDERS' EQUITY |  |  |  |
Stock options, Exercise price | $ / shares | $ 2.20 |  |  |
Number of options | shares | 4,584 | 4,584 |  |
Weighted average remaining contractual life (years) | 7 years 11 months 12 days |  |  |
Exercise Price $3.23 [Member] |  |  |  |
SHAREHOLDERS' EQUITY |  |  |  |
Stock options, Exercise price | $ / shares | $ 3.23 |  |  |
Number of options | shares | 3,794,603 | 3,794,603 |  |
Weighted average remaining contractual life (years) | 8 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) | 8 years 3 months 18 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) | 7 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) | 6 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) | 8 years 4 months 2 days |  |  |
Exercise Price $7.00 [Member] |  |  |  |
SHAREHOLDERS' EQUITY |  |  |  |
Stock options, Exercise price | $ / shares | $ 7.00 |  |  |
Number of options | shares | 1,508,146 | 1,508,146 |  |
Weighted average remaining contractual life (years) | 9 years 5 months 12 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) | 9 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) | 9 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) | 9 years 11 months 1 day |  |  |
Exercise Price C$4.90 [Member] |  |  |  |
SHAREHOLDERS' EQUITY |  |  |  |
Stock options, Exercise price | $ / shares |  | $ 4.90 |  |
Number of options | shares | 163,154 | 163,154 |  |
Weighted average remaining contractual life (years) | 6 years 21 days |  |  |
Exercise Price C$5.06 [Member] |  |  |  |
SHAREHOLDERS' EQUITY |  |  |  |
Stock options, Exercise price | $ / shares | $ 5.06 |  |  |
Number of options | shares | 32,231 | 32,231 |  |
Weighted average remaining contractual life (years) | 7 years 7 months 13 days |  |  |

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