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Long-Term Reclamation Liability and Retirement Obligation Asset (Reconciliation of Aggregate Retirement Asset) (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
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