| Property and Equipment - Schedule of Software (Details) - USD ($) | Jan. 31, 2021 | Apr. 30, 2020 | 
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Software | $ 378,494 | $ 347,163 | 
| Software | ||
| Property, Plant and Equipment [Line Items] | ||
| Software | 7,944,693 | 6,162,770 | 
| Accumulated amortization | (3,078,213) | (2,049,809) | 
| Total | $ 4,866,480 | $ 4,112,961 | 
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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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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