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Fair Value Measurements (Details 4)
 6 Months Ended 12 Months Ended
Sep. 30, 2020
Mar. 31, 2020
Fair Value Disclosures [Abstract]    
Market yield 27.40%
Senior secured convertible notes payable, net (binomial lattice model):    
Market yield 22.80%
Unsecured convertible notes payable related party, net (yield model with a Black-Scholes-Merton option pricing model):    
Market yield 38.80% 41.60%
Unsecured convertible note payable (yield model with a Black-Scholes-Merton option pricing model):    
Market yield 38.80% 43.90%