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v3.20.4

Consolidated Statements of Operations - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Income Statement [Abstract] |  |
Revenue, net - mineral property sale | $ 0 | $ 408
Costs, expenses and other |  |
Exploration expense | 413 | 1,807
Depreciation and amortization | 25 | 25
Mineral property impairment | 6 | 0
General and administrative | 1,044 | 1,368
Total costs, expenses and other | 1,488 | 3,200
Interest and dividend income (net) | 127 | 252
Other income | 104 | 0
Loss on derivative instruments | (92) | (38)
Gain on sale of marketable equity securities | 50 | 0
Unrealized gain (loss) on marketable equity securities | 360 | (711)
Total other income (expense) | 549 | (497)
Net loss | $ (939) | $ (3,289)
Loss per common share: |  |
Basic and diluted | $ (0.02) | $ (0.06)
Weighted average shares outstanding: |  |
Basic and diluted (in thousands) | 58,116 | 58,143

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