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SHAREHOLDERS' EQUITY (Summary of Warrants Activity) (Details) - $ / shares
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Number of Warrants      
Number of Warrants, Beginning balance (in shares) 9,272,977 12,393,092 2,663,937
Warrants granted (in shares)     11,919,404
Warrants exercised (in shares) (6,038,227) (3,120,115) (2,188,999)
Warrants expired (in shares)     (1,250)
Number of Warrants, Ending balance (in shares) 3,234,750 9,272,977 12,393,092
Weighted Average Exercise Price      
Weighted Average Exercise Price, Beginning balance (in dollar per share) $ 1.73 $ 1.31 $ 6.13
Weighted average exercise price, warrants granted (in dollar per share)     0.0001
Weighted average exercise price, warrants exercised (in dollar per share) (0.06) (0.08) (0.002)
Weighted average exercise price, warrants expired (in dollar per share)     (31.17)
Weighted Average Exercise Price, Ending balance (in dollar per share) $ 4.84 $ 1.73 $ 1.31