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Courseware (Narrative) (Details) - Courseware [Member] - USD ($)
12 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Finite-Lived Intangible Assets [Line Items]    
Courseware costs capitalized $ 48,388 $ 8,800
Amortization Expense $ 55,706 $ 58,254