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Summary of Grant-date Fair Value of Stock Options Granted and Assumptions Used Binomial Models (Details) - $ / shares
1 Months Ended 12 Months Ended
Sep. 30, 2019
Mar. 31, 2022
Mar. 31, 2021
Share-Based Payment Arrangement [Abstract]      
Grant-date fair value   $ 6.05
Volatility factor   65.38%
Dividend yield  
Risk-free interest rate   0.92%
Expected term (in years) 120 months 6 years 3 months