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Equity - Schedule of weighted average assumptions for stock options (Details) - Year
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Disclosure of equity and share based arrangement [Abstract]    
Risk-free interest rate 1.10% 0.42%
Expected life (years) 9.88 5
Annualized volatility 105.00% 105.00%
Dividend rate 0.00% 0.00%