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Summary of Accounting Policies (Details) - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
12 Months Ended
Apr. 30, 2020
Apr. 30, 2019
Summary of Accounting Policies (Details) - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Line Items]    
Expected volatility 0.00% 35.00%
Dividend yield 0.00% 0.00%
Risk-free interest rate 0.00%  
Expected lives 0 years 5 years
Minimum [Member]    
Summary of Accounting Policies (Details) - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Line Items]    
Risk-free interest rate   2.81%
Maximum [Member]    
Summary of Accounting Policies (Details) - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Line Items]    
Risk-free interest rate   3.07%