| SCHEDULE OF NET DEFERRED TAX ASSET AND LIABILITIES (Details) - USD ($) | Apr. 30, 2023 | Apr. 30, 2022 | 
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Net operating loss carryover | $ 11,599,000 | $ 9,970,000 | 
| Stock-based compensation | 866,000 | 2,234,000 | 
| Accrued remediation costs | 35,000 | 11,000 | 
| Other | 7,000 | |
| Subtotal | 12,507,000 | 12,215,000 | 
| Less: valuation allowance | (10,774,000) | (10,493,000) | 
| Total deferred tax assets | 1,733,000 | 1,722,000 | 
| Acquired mineral rights in excess of tax basis in a tax-free merger | (2,152,000) | (2,152,000) | 
| Other | (11,000) | |
| Total deferred tax liabilities | (2,163,000) | (2,152,000) | 
| Net deferred tax assets (liabilities) | $ (430,000) | $ (430,000) | 
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- Definition Acquired mineral rights in excess of tax basis in a tax-free merger. No definition available. 
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| X | ||||||||||
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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| X | ||||||||||
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- References No definition available. 
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