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Mineral Properties (Details 1) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Exploration expense $ 918 $ 655 $ 1,748 $ 1,832
Geologic And Field Expenses [Member]        
Exploration expense 895 559 1,630 1,567
Administrative [Member]        
Exploration expense $ 23 $ 96 $ 118 $ 265