| Courseware and Accreditation (Tables) - Courseware | 9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Jan. 31, 2020 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Schedule of Software | Courseware consisted of the following at January 31, 2020 and April 30, 2019: 
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| Schedule of Amortization Expense of Intangible Assets | Amortization expense of courseware for the three and nine months ended January 31, 2020 and 2019: 
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| Future Amortization Expense | The following is a schedule of estimated future amortization expense of courseware at January 31, 2020: 
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- Definition Tabular disclosure of amortization expense of intangible assets. No definition available. 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Details 
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