Consolidated Stockholders' Equity Statements (Unaudited) (Parenthetical) |
3 Months Ended |
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Jul. 31, 2021
USD ($)
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| Statement of Stockholders' Equity [Abstract] | |
| Payment of issuance costs on public offerings | $ 5,959,800 |
| X | ||||||||||
- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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