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Long-Term Reclamation Liability and Retirement Obligation Asset (Tables)
 3 Months Ended
Mar. 31, 2013
Long-Term Reclamation Liability and Retirement Obligation Asset [Abstract]  
Schedule of Other Noncurrent Liabilities

Following is a reconciliation of the aggregate reclamation liability associated with our reclamation plan for our mining projects:

 

    March 31,     December 31,  
    2013     2012  
Long-term reclamation liability - beginning of period   $ 4,597,156     $ 2,007,605  
Additional obligations incurred     -       2,405,314  
Accretion of reclamation liability     73,206       184,237  
Long-term reclamation liability - end of period   $ 4,670,362     $ 4,597,156  
Schedule of Asset Retirement Obligations

Following is a reconciliation of the aggregate retirement obligation asset associated with our reclamation plan for our mining projects:

 

    March 31,     December 31,  
    2013     2012  
Retirement obligation asset - beginning of period   $ 2,803,318     $ 825,481  
Additional obligations incurred     -       2,405,314  
Amortization of retirement obligation asset     (207,089 )     (427,477 )
Retirement obligation asset - end of period   $ 2,596,229     $ 2,803,318