Quarterly report pursuant to Section 13 or 15(d)

Courseware (Narrative) (Details)

v3.8.0.1
Courseware (Narrative) (Details) - Courseware [Member] - USD ($)
3 Months Ended 9 Months Ended
Jan. 31, 2018
Jan. 31, 2017
Jan. 31, 2018
Jan. 31, 2017
Finite-Lived Intangible Assets [Line Items]        
Courseware costs capitalized     $ 33,369  
Amortization expense $ 13,966 $ 13,663 $ 41,289 $ 44,664