Long-Term Reclamation Liability and Retirement Obligation Asset (Reconciliation of Aggregate Retirement Asset) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Retirement obligation asset — beginning of period	$ 2,803,318	$ 825,481	$ 339,357
Additional obligations incurred	531,770	2,405,314	577,529
Amortization of retirement obligation asset	(843,132)	(427,477)	(91,405)
Retirement obligation asset — end of period	$ 2,491,956	$ 2,803,318	$ 825,481