Derivative Liabilities (Tables)
 12 Months Ended
Apr. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Summary of Weighted-average Assumptions Used on Derivative Liabilities

The following weighted-average assumptions were used for the period indicated:

 

      Fiscal Year Ended
April 30, 2019		  
Expected term (in years)     1.0 – 5.0  
Expected average volatility     107% – 237%  
Risk-free interest rate     1.65% – 2.96%  
Expected dividend yield     -  
Summary of Fair Value Measurements Using Significant Unobservable Inputs (Level 3)

The following table summarizes the changes in the Company’s derivative liabilities:

 

Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Balance at April 30, 2018   $ 30,488,655  
Additions of new derivatives recognized as debt discounts     325,000  
Additions of new derivatives recognized as loss on derivatives     679,032  
Reclassifications of derivatives due to tainted instruments     258,132  
Change in fair value of the derivative     (10,547,737 )
Reclassification of derivative to additional paid-in capital     (1,187,242 )
Change in derivative liabilities recognized as gain on derivative     (20,015,840 )
Balance at April 30, 2019   $ -  
Summary of (Loss) Gain on Derivative Liability

The following table summarizes the gain on derivative liability included in our consolidated statements of operations for the period indicated:

 

    Fiscal Year Ended
April 30, 2019		  
Day one loss due to derivative liabilities on convertible notes payable and warrants   $ (679,032 )
Change in derivative liabilities     20,015,840  
Gain (loss) from marked-to-market adjustments     10,556,846  
Net gain (loss) on derivative liabilities   $ 29,893,654