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Mineral Properties - Properties - Investment in Mineral Properties (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Development (United States)    
Mt. Hamilton $ 12,059,000 $ 9,275,000
Exploration    
Pachuca (Mexico) 20,000 20,000
La Promesa (Peru) 5,000 5,000
Norcan (Mexico) 6,000 6,000
Aconchi (Mexico) 5,000 5,000
Canta Colorado (Mexico) 3,000 3,000
Atico (Peru)    5,000
Cerro Azul (Peru)    3,000
Jaripo (Mexico)    5,000
Total exploration 39,000 52,000
Total mineral property $ 12,098,000 $ 9,327,000