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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) | 0 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 22, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Reverse Stock Split |  |  |  |
Reverse stock split ratio | 0.1 |  |  |
Common stock outstanding before reverse stock split (in shares) |  | 161,100,000 |  |
Common stock, shares outstanding |  | 16,150,163 | 9,400,501 |
Results of operations |  | $ (15,624,373) | $ (11,199,397) | $ (10,354,567)
Retained earnings |  | (162,201,908) | (146,577,535) |
Additional disclosures of cash flow information |  |  |  |
Cash paid during the period for interest |  | 14,100 | 19,000 | 25,400
Non-cash transactions |  |  |  |
Common stock issued to acquire Neutron Energy, Inc. |  | 16,577,000 |  |
Common stock issued for loan origination fees |  | 160,000 |  |
Capital lease additions |  | 106,200 |  |
Common stock issued for deferred compensation |  |  | 697,027 |
Restricted common stock issued for services |  | 39 | 17 | 28
Restricted share issuance of Common Stock in connection with a cash conservation plan |  |  |  | 106,500
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
Restatement adjustment |  |  |  |
Reverse Stock Split |  |  |  |
Results of operations |  | 0 |  |
Retained earnings |  | $ 0 |  |

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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 07-4 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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Period Type: | duration