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Accounts Payable and Other Current Liabilities - Schedule of Accounts Payable and Other Current Liabilities (Detail) - USD ($)
Mar. 31, 2021
Mar. 31, 2020
Payables And Accruals [Abstract]    
Legal $ 454,139 $ 199,671
Consultant and professional services 176,957 109,504
Accounting and auditing 55,349 118,837
Research and development 2,657,202 1,863,355
Board of Directors and Scientific Advisory Board Compensation 435,594 484,750
Other 63,149 51,185
Total $ 3,842,390 $ 2,827,302