Schedule of Effective Income Tax Rate Reconciliation (Details) |
12 Months Ended | |
|---|---|---|
Apr. 30, 2025 |
Apr. 30, 2024 |
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| Income Tax Disclosure [Abstract] | ||
| Computed expected tax benefit | (21.00%) | (21.00%) |
| State income taxes, net of federal benefit | (3.70%) | (3.50%) |
| Federal research and development tax credits | (1.10%) | |
| Foreign rate differential | ||
| Other non-deductible expenses | (0.10%) | 0.40% |
| Proceeds of sale of New Jersey tax benefits | (3.60%) | (3.40%) |
| Expiration of net operating loss due to dissolution of subsidiary | 8.80% | |
| Other expiration of net operating loss | 6.70% | 4.50% |
| Increase in valuation allowance | 8.30% | 19.80% |
| Income tax (benefit) | (4.60%) | (4.30%) |
| X | ||||||||||
- Definition Effective income tax reconciliation other expiration of net operating loss. No definition available.
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| X | ||||||||||
- Definition Effective income tax reconciliation proceeds of sale of new jersey tax benefits. No definition available.
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| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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