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Courseware (Schedule of Estimated Future Amortization Expense) (Details) - USD ($)
Apr. 30, 2017
Apr. 30, 2016
Finite-Lived Intangible Assets [Line Items]    
Intangible asset, net $ 145,477 $ 194,932
Courseware [Member]    
Finite-Lived Intangible Assets [Line Items]    
2018 50,942  
2019 49,469  
2020 35,627  
2021 8,663  
2022 776  
Intangible asset, net $ 145,477 $ 194,932