Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Stock compensation activity (Details)

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STOCK-BASED COMPENSATION - Stock compensation activity (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Option Shares Outstanding    
Outstanding at September 30, 2019 15,807,911  
Awarded 3,120,000  
Forfeited/Cancelled (490,487)  
Outstanding at December 31, 2019 18,437,424 15,807,911
Vested 14,372,203  
Vested and expected to vest at December 31, 2019 18,437,424  
Weighted Average Exercise Price    
Outstanding at September 30, 2019 $ 0.40  
Awarded 0.23  
Forfeited/Cancelled 0.33  
Outstanding at December 31, 2019 0.37 $ 0.40
Vested 0.39  
Vested and expected to vest at December 31, 2019 $ 0.37  
Weighted Average Remaining Contractual Term (years)    
Outstanding at September 30, 2019   3 years 1 month 21 days
Awarded 0 years  
Forfeited/Cancelled 0 years  
Outstanding at December 31, 2019 2 years 10 months 28 days  
Vested 3 years 3 months 7 days  
Vested and expected to vest at December 31, 2019 2 years 10 months 28 days  
Aggregate Intrinsic Value    
Outstanding at September 30, 2019 $ 142,810  
Awarded 0  
Forfeited/Cancelled 0  
Outstanding at December 31, 2019 235,690 $ 142,810
Vested 180,712  
Vested and expected to vest at December 31, 2019 $ 235,690