Stockholders' Equity - Stock Options (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Apr. 30, 2022 |
Apr. 30, 2021 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | Ìý | Ìý |
| Unrecognized compensation costs | $ 5,446 | Ìý |
| Stock Incentive Plan and Stock Option Grants to Employees and Directors | Ìý | Ìý |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | Ìý | Ìý |
| Granted (in shares) | 0 | 0 |
| Stock options | Ìý | Ìý |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | Ìý | Ìý |
| Weighted average recognition period | 5 months 1 day | Ìý |
| X | ||||||||||
- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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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- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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- Details
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