Leases (Narrative) (Details) - USD ($) |
3 Months Ended | ||
|---|---|---|---|
Jul. 31, 2019 |
Apr. 30, 2019 |
Jul. 31, 2018 |
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| Lessee Disclosure [Abstract] | Ìý | Ìý | Ìý |
| Lease expense | $ 612,597 | Ìý | Ìý |
| Right of use lease asset | 7,996,585 | Ìý | |
| Operating lease liabilities | $ 1,100,411 | $ 500,000 |
| 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 Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. 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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