Annual report pursuant to Section 13 and 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 ($)
Apr. 30, 2016
Apr. 30, 2015
Property, Plant and Equipment [Line Items]    
Intangible asset, net $ 194,932 $ 173,311
Software [Member]    
Property, Plant and Equipment [Line Items]    
2017 400,049  
2018 267,014  
2019 183,840  
2020 113,997  
2021 41,551  
Intangible asset, net $ 1,006,451 $ 1,114,349