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Plant And Equipment (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 141 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2013 | Sep. 30, 2013 | Dec. 31, 2012
Property, Plant and Equipment [Line Items] |  |  |  |
Cost | $ 7,800 | $ 7,800 | $ 7,800 | $ 5,510
Accumulated depreciation and write downs | 2,710 | 2,710 | 2,710 | 1,918
Net | 5,090 | 5,090 | 5,090 | 3,592
Impairment of Long-Lived Assets to be Disposed of | 3,500 | 3,500 | 10,617 |
Assets held for sale (mill equipment) | 6,500 | 6,500 | 6,500 | 10,000
Cost of Assets Held for Sale | 10,000 | 10,000 | 10,000 | 10,000
Writedowns of Assets Held For Sale | 3,500 | 3,500 | 3,500 |
Gross Sale Price of Assets Held For Sale | 7,300 | 7,300 | 7,300 |
Commissions and Costs to Sell of Assets Held For Sale | 800 | 800 | 800 |
Awak Mas, Indonesia [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Cost | 242 | 242 | 242 | 242
Accumulated depreciation and write downs | 242 | 242 | 242 | 242
Mt. Todd, Australia [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Cost | 5,500 | 5,500 | 5,500 | 3,497
Accumulated depreciation and write downs | 1,789 | 1,789 | 1,789 | 1,124
Net | 3,711 | 3,711 | 3,711 | 2,373
Los Cardones, Mexico [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Cost | 1,219 | 1,219 | 1,219 | 1,194
Accumulated depreciation and write downs | 125 | 125 | 125 | 109
Net | 1,094 | 1,094 | 1,094 | 1,085
Guadalupe de los Reyes, Mexico [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Cost | 21 | 21 | 21 | 21
Accumulated depreciation and write downs | 5 | 5 | 5 | 3
Net | 16 | 16 | 16 | 18
Corporate, United States [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Cost | 818 | 818 | 818 | 556
Accumulated depreciation and write downs | 549 | 549 | 549 | 440
Net | $ 269 | $ 269 | $ 269 | $ 116

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