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FEDERAL INCOME TAXES (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Deferred federal income tax asset (liability) |  |  |
Property development costs-net of amortization | $ 13,500,000 | $ 10,399,000 | $ 11,583,000
Accelerated depreciation | (294,000) | (105,000) | (151,000)
Restoration reserves | (2,681,000) | (2,080,000) | (1,560,000)
Net operating loss carryforwards utilized | 996,000 | 143,000 |
Net operating loss and percentage depletion carryforwards | 57,724,000 | 39,496,000 | 34,766,000
Valuation allowance and other-net | (69,245,000) | (47,853,000) | (44,638,000)
Amount, causing the entity's tax provision to differ from the federal statutory rate |  |  |
Pretax income (loss) | (15,624,373) | (11,199,397) | (10,354,567)
Pretax income (loss) times statutory tax rate | (5,312,000) | (3,808,000) | (3,521,000)
Increases (decreases) in taxes resulting from: |  |  |
Change in valuation allowance | 5,312,000 | 3,808,000 | 3,521,000
Income tax benefit | 0 | 0 | 0
% of Pretax Income |  |  |
Pretax income (loss) times statutory tax rate (as a percent) | 34.00% | 34.00% | 34.00%
Increases (decreases) in taxes resulting from: |  |  |
Change in valuation allowance (as a percent) | (34.00%) | (34.00%) | (34.00%)
Income tax benefit (as a percent) | 0.00% | 0.00% | 0.00%
Estimated net operating loss (NOL) carryforwards | 167,000,000 |  |
NOL's associated with the Neutron acquisition | $ 29,600,000 |  |

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