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ASSET RETIREMENT OBLIGATIONS (Details) (USD $)	3 Months Ended
ASSET RETIREMENT OBLIGATIONS (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Change in the balance of the restoration and reclamation liability
Reserve for future restoration and reclamation costs at the beginning of the period	$ 4,498,057
Additions and changes in cash flow estimates	272,667
Costs incurred	(489,153)
Accretion expense	97,435	23,119
Reserve for future restoration and reclamation costs at the end of the period	$ 4,379,006

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.

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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.

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