Leases (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
Jan. 31, 2020 |
Jan. 31, 2020 |
May 01, 2019 |
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| Lessee Disclosure [Abstract] | |||
| Lease expense | $ 632,212 | $ 1,869,093 | |
| Right of use lease asset | 7,693,268 | 7,693,268 | $ 8,800,000 |
| Cash paid for amounts included in operating lease liabilities | 600,000 | 1,700,000 | |
| Leases not yet commenced, liability | $ 4,300,000 | $ 4,300,000 |
| X | ||||||||||
- Definition Lessee, Operating Lease, Lease Not yet Commenced, Liability No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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