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Fair Value Measurements (Details) - Schedule of derivative on senior secured convertible debentures
6 Months Ended 12 Months Ended
Sep. 30, 2021
Mar. 31, 2021
Bifurcated embedded derivative on secured convertible notes payable:    
Market yield 4.20% 17.00%
Bifurcated embedded derivative on unsecured convertible note payable:    
Market yield 4.70% 26.50%