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Property and Equipment (Schedule of Estimated Amortization Expense of Software) (Details) - USD ($)
Oct. 31, 2016
Apr. 30, 2016
Property, Plant and Equipment [Line Items]    
Intangible asset, net $ 170,481 $ 194,932
Software [Member]    
Property, Plant and Equipment [Line Items]    
2017 198,363  
2018 317,445  
2019 234,272  
2020 164,430  
2021 107,030  
Intangible asset, net $ 1,021,540 $ 1,006,451