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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Operating expenses:    
Exploration expense $ 354,000 $ 275,000
Depreciation 7,000 6,000
General and administrative 472,000 476,000
Total operating expenses 833 757,000
Other income:    
Interest and dividend income 95,000 27,000
Unrealized gain on short-term investments 0 21,000
Unrealized gain on marketable equity securities 8,000 329,000
Total other income 103,000 377,000
Net Loss $ (730,000) $ (380,000)
Net Loss per common share:    
Basic and diluted $ (0.01) $ (0.01)
Weighted average shares outstanding:    
Basic and diluted 79,624 64,801