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WARRANTS AND STOCK OPTIONS - Options (Details) - $ / shares
3 Months Ended 6 Months Ended
Mar. 31, 2021
Mar. 31, 2021
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]    
Stock price $ 5.49 $ 6.46
Exercise price $ 5.49 $ 6.46
Expected term, years 5 years 5 years 1 month 17 days
Dividend yield 0.00% 0.00%
Volatility 138.00% 140.00%
Risk free rate 0.38% 0.36%
Board members    
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]    
Granted 80,862 154,005
Exercise price $ 4.83 $ 5.73