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Courseware (Schedule of Courseware, Net) (Details) - USD ($)
Jan. 31, 2017
Apr. 30, 2016
Finite-Lived Intangible Assets [Line Items]    
Intangible asset, net $ 156,818 $ 194,932
Courseware [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible asset, gross 272,727 319,267
Accumulated amortization (115,909) (124,335)
Intangible asset, net $ 156,818 $ 194,932