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Property and Equipment (Schedule of Estimated Amortization Expense of Software) (Details) - USD ($)
Oct. 31, 2015
Apr. 30, 2015
Property, Plant and Equipment [Line Items]    
Intangible asset, net $ 200,153 $ 173,311
Software [Member]    
Property, Plant and Equipment [Line Items]    
2016 241,275  
2017 360,663  
2018 227,628  
2019 144,455  
2020 84,661  
Intangible asset, net $ 1,058,682 $ 1,114,349