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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restricted Cash
Certificates of deposit and money market accounts	$ 9,491,865	$ 9,379,794
Change in the balance of the restoration and reclamation liability
Reserve for future restoration and reclamation costs at the beginning of the period	4,735,759	5,043,645
Changes in cash flow estimates	1,444,406	1,101,234
Costs incurred	(1,767,289)	(1,530,303)
Accretion expense	85,181	121,183	155,943
Reserve for future restoration and reclamation costs at the end of the period	4,498,057	4,735,759	5,043,645
Contingent Liabilities-Off Balance Sheet Arrangements
Amount of bank Letters of Credit and performance bonds issued	$ 8,707,000
Earnings Per Share
Dilutive securities (in shares)	0	0	0
Potential dilutive Common Stock excluded from the calculation of diluted earnings per share (in shares)	403,274	454,885	594,714

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