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Segment Reporting - Segment Information (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Exploration expense |  |
Mt Hamilton |  | $ 301,000
Exploration | 797,000 | 1,685,000
Corporate and Other |  |
Consolidated | 797,000 | 1,986,000
Interest expense |  |
Mt Hamilton |  | 184,000
Exploration |  |
Corporate and Other |  | 234,000
Consolidated |  | 418,000
Other (1) |  |
Mt Hamilton | (287,000) | 58,000
Exploration | 784,000 | 798,000
Corporate and Other | 887,000 | 986,000
Consolidated | 1,384,000 | 1,842,000
Pre-tax income (loss) |  |
Mt Hamilton | 287,000 | (543,000)
Exploration | (1,581,000) | (2,483,000)
Corporate and Other | (887,000) | (1,220,000)
Consolidated | (2,181,000) | (4,246,000)
Total assets (2)(3) |  |
Mt Hamilton | 14,283,000 | 14,236,000
Exploration | 784,000 | 1,467,000
Corporate and Other | 4,433,000 | 7,780,000
Consolidated | 19,500,000 | 23,483,000
Capital Expenditures (4) |  |
Mt Hamilton | 3,094,000 | 3,789,000
Exploration | 5,000 | 3,000
Corporate and Other | 4,000 | 62,000
Consolidated | $ 3,103,000 | $ 3,854,000

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