Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment (Schedule of Software, Net) (Details)

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Property and Equipment (Schedule of Software, Net) (Details) - USD ($)
Jan. 31, 2019
Apr. 30, 2018
Property, Plant and Equipment [Line Items]    
Intangible asset, gross $ 8,816,667 $ 9,641,667
Intangible asset, net 179,154 138,159
Software [Member]    
Property, Plant and Equipment [Line Items]    
Intangible asset, gross 3,869,750 2,878,753
Accumulated depreciation (1,235,213) (1,146,008)
Intangible asset, net $ 2,634,537 $ 1,732,745