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STOCK-BASED COMPENSATION (Details)
6 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Dividend yield 0.00% 0.00%
Minimum    
Risk-free interest rates 0.28% 1.35%
Volatility 88.00% 97.00%
Expected life (years) 5 years 5 years
Maximum    
Risk-free interest rates 0.37% 2.41%
Volatility 128.00% 102.00%
Expected life (years) 6 years 6 years