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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Costs, Expenses And Other:    
Exploration Expense $ 226 $ 147
Depreciation 8 5
General And Administrative 387 280
Total Costs, Expenses And Other 621 432
Other (loss) Income    
Interest And Dividend Income 27 31
Other Income 0 10
Loss On Derivative Instruments (1) (3)
(loss) Gain On Sale Of Marketable Equity Securities (81) 13
Unrealized Loss On Short-term Investments (51) (25)
Unrealized Gain (loss) On Marketable Equity Securities 213 (122)
Total Other Loss 107 (96)
Net Loss $ (514) $ (528)
Loss Per Common Share:    
Basic And Diluted Per Share $ (0.01) $ (0.01)
Weighted Average Shares Outstanding:    
Basic And Diluted 62,728 58,254