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Shareholders' Equity (Details)
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Equity [Abstract]    
Risk-free interest rate, minimum 1.20% 2.20%
Risk-free interest rate, maximum 2.40% 3.10%
Expected life 5 years 5 years
Expected volatility, minimum 87.00% 87.00%
Expected volatility, maximum 89.00% 91.00%
Expected dividend 0.00% 0.00%