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Plant And Equipment (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 132 Months Ended
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2012
Property, Plant and Equipment [Line Items] |  |  |
Cost | $ 6,273 | $ 5,510 | $ 5,510
Accumulated depreciation and write downs | 2,575 | 1,918 | 1,918
Net | 3,698 | 3,592 | 3,592
Value of option to acquire mill equipment | 16,000 |  |
Impairment of mill equipment | 3,500 | 7,117 | 10,617
Estimated sale value | 7,300 |  |
Commissions and other costs to sell mill equipment | 800 |  |
Los Cardones, Mexico [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost |  | 1,194 | 1,194
Accumulated depreciation and write downs |  | 109 | 109
Net |  | 1,085 | 1,085
Awak Mas, Indonesia [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost |  | 242 | 242
Accumulated depreciation and write downs |  | 242 | 242
Mt. Todd, Australia [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 5,472 | 3,497 | 3,497
Accumulated depreciation and write downs | 1,993 | 1,124 | 1,124
Net | 3,479 | 2,373 | 2,373
Guadalupe de los Reyes, Mexico [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 21 | 21 | 21
Accumulated depreciation and write downs | 5 | 3 | 3
Net | 16 | 18 | 18
Corporate, United States [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 780 | 556 | 556
Accumulated depreciation and write downs | 577 | 440 | 440
Net | 203 | 116 | 116
Assets Held-for-sale [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 10,000 | 10,000 | 10,000
Net | 6,500 | 10,000 | 10,000
Impairment of Long-Lived Assets Held-for-use | 3,500 |  |
Mill Equipment Estimated Fair Value | $ 10,000 |  |

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