Revenue (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Jan. 31, 2020 |
Jan. 31, 2019 |
Jan. 31, 2020 |
Jan. 31, 2019 |
Apr. 30, 2019 |
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| Disaggregation of Revenue [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý |
| Deferred revenue | $ 5,694,743 | Ìý | $ 5,694,743 | Ìý | $ 2,456,865 |
| Refunds due students | 2,311,745 | Ìý | 2,311,745 | Ìý | $ 1,174,501 |
| Total revenue earned, deferred revenue | $ 5,500,000 | Ìý | $ 2,500,000 | Ìý | Ìý |
| Revenue Benchmark | Non-US | Ìý | Ìý | Ìý | Ìý | Ìý |
| Disaggregation of Revenue [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý |
| Percentage of revenues from students outside the United States | 1.90% | 1.70% | 1.90% | 2.10% | Ìý |
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment. 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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