Leases - Schedule of Operating Lease Costs (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Apr. 30, 2020 |
Apr. 30, 2019 |
|
| Total lease cost | $ 637,876 | $ 468,954 |
| General and Administrative Expenses [Member] | ||
| Total lease cost | 637,876 | 468,954 |
| Depreciation and Amortization [Member] | ||
| Total lease cost | ||
| Interest Expense, Net [Member] | ||
| Total lease cost | ||