Annual report pursuant to Section 13 and 15(d)

Income Tax - Schedule of Net Deferred Tax Asset and Liabilities (Details)

v3.21.2
Income Tax - Schedule of Net Deferred Tax Asset and Liabilities (Details) - USD ($)
Apr. 30, 2021
Apr. 30, 2020
Income Tax Disclosure [Abstract]    
Net operating loss carryover $ 6,793,000 $ 5,083,000
Stock-based compensation 2,776,000 2,019,000
Capitalized exploration costs 431,000 340,000
Accrued remediation costs 7,000 7,000
Alternative minimum tax credit carryover
Subtotal 10,007,000 7,449,000
Less: valuation allowance (7,855,000) (7,449,000)
Total deferred tax asset 2,152,000
Acquired mineral rights in excess of tax basis in a tax-free merger (2,152,000)
Total deferred tax liabilities (2,152,000)
Net deferred tax asset (liabilities)