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Mineral Properties (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | 9 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
Lost Creek Property [Member]
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Sep. 30, 2014
Path Finder Mines [Member]
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Sep. 30, 2014
Other Us Properties [Member]
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Dec. 31, 2013
Other Us Properties [Member]
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Sep. 30, 2014
Canadian Properties [Member]
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| Mineral Properties [Line Items] | ||||||||
| Balance, December 31, 2013 | $ 52,702 | $ 23,685 | $ 15,318 | $ 13,210 | $ 13,210 | $ 489 | ||
| Acquisition costs | 42 | 42 | ||||||
| Increase in reclamation costs | 5,697 | 5,697 | ||||||
| Reporting exchange rate adjustment | (5) | (5) | ||||||
| Property write-offs | (329) | (422) | (262) | (422) | ||||
| Amortization | (4,097) | (3,859) | (238) | |||||
| Balance, September 30, 2014 | $ 53,917 | $ 53,917 | $ 19,826 | $ 20,819 | $ 13,210 | $ 13,210 | $ 62 | |
| X | ||||||||||
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- Definition
The assumption amount in estimated asset reclamation obligation. No definition available.
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| X | ||||||||||
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- Definition
Amount of reporting exchange rate adjustment. No definition available.
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| X | ||||||||||
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- Definition
The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Mineral properties, net of adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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