| Courseware (Tables) - Courseware [Member] | 3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Jul. 31, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Finite-Lived Intangible Assets [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Intangible Asset | Courseware consisted of the following at July 31, 2017 and April 30, 2017: 
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| Schedule of Amortization Expense of Intangible Assets | Amortization expense of courseware for the three months ended July 31, 2017 and 2016: 
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| Schedule of Estimated Future Amortization Expense | The following is a schedule of estimated future amortization expense of courseware at July 31, 2017: 
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