Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment (Schedule of Estimated Amortization Expense of Software) (Details)

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Property and Equipment (Schedule of Estimated Amortization Expense of Software) (Details) - USD ($)
Oct. 31, 2018
Apr. 30, 2018
Property, Plant and Equipment [Line Items]    
Intangible asset, net $ 192,652 $ 138,159
Software [Member]    
Property, Plant and Equipment [Line Items]    
2019 339,823  
2020 630,841  
2021 553,378  
2022 460,380  
2023 300,139  
Thereafter 52,895  
Intangible asset, net $ 2,337,456 $ 1,732,745