Leases - Narrative (Details) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Jan. 31, 2022
USD ($)
´Ú³Ù²
|
Jan. 31, 2021
USD ($)
|
Jan. 31, 2022
USD ($)
´Ú³Ù²
|
Jan. 31, 2021
USD ($)
|
|
| Lessee, Lease, Description [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Amount of office and classroom space leased (in square feet) | ´Ú³Ù² | 191,328 | Ìý | 191,328 | Ìý |
| Lease extension term | 5 years | Ìý | 5 years | Ìý |
| Total future minimum lease payments (as a percent) | 96.00% | Ìý | 96.00% | Ìý |
| Incremental borrowing rate (as a percent) | 12.00% | Ìý | 12.00% | Ìý |
| Amortization of tenant improvement allowances | $ 177,259 | $ 483,872 | $ 0 | $ 0 |
| Lease expense | 1,008,704 | $ 717,664 | 2,861,876 | $ 1,779,317 |
| Leases not yet commenced, liability | $ 3,700,000 | Ìý | $ 3,700,000 | Ìý |
| Minimum | Ìý | Ìý | Ìý | Ìý |
| Lessee, Lease, Description [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Lease term | 6 years | Ìý | 6 years | Ìý |
| Maximum | Ìý | Ìý | Ìý | Ìý |
| Lessee, Lease, Description [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Lease term | 8 years | Ìý | 8 years | Ìý |
| X | ||||||||||
- Definition Amortization Of Tenant Improvement Allowances No definition available.
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| X | ||||||||||
- Definition Lessee, Operating Lease, Future Minimum Lease Payments, Percent No definition available.
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| X | ||||||||||
- Definition Lessee, Operating Lease, Lease Not yet Commenced, Liability No definition available.
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| X | ||||||||||
- Definition Area of land subject to a ground lease. No definition available.
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| X | ||||||||||
- 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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| X |
- Definition Discount rate used by lessee to determine present value of operating lease payments. Reference 1: http://www.xbrl.org/2003/ |