Long-Term Reclamation Liability and Retirement Obligation Asset (Reconciliation of Aggregate Retirement Asset) (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Long-Term Reclamation Liability and Retirement Obligation Asset [Abstract] | |||
Retirement obligation asset - beginning of period | $ 825,481 | $ 339,357 | $ 340,159 |
Additional obligations incurred | 2,405,314 | 577,529 | 58,447 |
Amortization of retirement obligation asset | (427,477) | (91,405) | (59,249) |
Retirement obligation asset - end of period | $ 2,803,318 | $ 825,481 | $ 339,357 |
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- Definition
The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of asset retirement obligations incurred during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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