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v3.22.1

Income Taxes (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Loss carryovers | $ 12,148,000 | $ 12,636,000
Investment in mineral property | 1,669,000 | 1,669,000
Capitalized exploration costs | 418,000 | 410,000
Stock option compensation expense | 309,000 | 286,000
Unrealized loss on derivative securities | 98,000 | 148,000
Other | 91,000 | 110,000
Lease liability | 18 | 0
Valuation allowance | (14,561,000) | (15,050,000)
Total deferred tax assets | 190,000 | 209,000
Deferred tax liabilities: |  |
Unrealized gains on marketable equity securities | 173,000 | 207,000
Lease asset | 17 | 0
Other | 0 | 2,000
Total deferred tax liabilities | 190,000 | 209,000
Net deferred tax liabilities | $ 0 | $ 0

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