Annual report pursuant to section 13 and 15(d)

INCOME TAXES (Details)

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INCOME TAXES (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Components of current and deferred federal and state income tax for continuing operations [Abstract]        
Federal income tax expense - current   $ (576,000) $ 2,043,000 $ 112,000
Federal income tax (benefit) expense - deferred   1,527,000 (2,692,000) 1,717,000
State income tax expense (benefit) - current   196,000 92,000 (85,000)
State income tax expense (benefit) - deferred   103,000 (538,000) 102,000
Total income tax (benefit) expense   1,250,000 (1,095,000) 1,846,000
Deferred tax assets [Abstract]        
Net operating losses 8,621,000 8,621,000 4,425,000  
Environmental and closure reserves 4,740,000 4,740,000 5,047,000  
Impairment of assets 505,000 505,000 7,679,000  
Investment (59,000) (59,000) 197,000  
Other 3,798,000 3,798,000 2,946,000  
Tax credit 869,000 869,000 0  
Deferred tax liabilities [Abstract]        
Depreciation and amortization (8,124,000) (8,124,000) (9,167,000)  
Prepaid expenses (16,000) (16,000) (46,000)  
Net deferred income tax assets before valuation allowance 10,334,000 10,334,000 11,081,000  
Valuation allowance (5,729,000) (5,729,000) (7,360,000)  
Net deferred income tax asset 4,605,000 4,605,000 3,721,000  
Reserve for uncertain tax positions (1,949,000) (1,949,000) 0  
Net deferred income tax asset 2,656,000 2,656,000 3,721,000  
Federal statutory rate (in hundredths)   34.00%    
Reconciliation between expected tax benefit and the provision for income taxes from continuing operations [Abstract]        
Tax (benefit) expense at statutory rate   (1,847,000) 3,557,000 1,740,000
State tax (benefit) expense, net of federal benefit   (131,000) 35,000 (56,000)
Previously unrecorded state tax benefit   0 0 (173,000)
Permanent items   110,000 150,000 61,000
Other   (23,000) (377,000) 0
Reserve for uncertain tax positions   1,949,000 0 0
Write-off of deferred tax asset 1,375,000 1,375,000 0 (1,369,000)
(Decrease) increase in valuation allowance   (183,000) (4,460,000) 1,643,000
Total income tax (benefit) expense   1,250,000 (1,095,000) 1,846,000
Deferred tax assets to be realized in the future 2,656,000 2,656,000 3,721,000 554,000
Increase (decrease) in valuation allowance   (183,000) (4,460,000) 1,643,000
Reconciliation of Unrecognized Tax Expense        
Balances at beginning of year   0 0 0
Addition related to current year tax position 1,949,000 1,949,000 0 0
Balances at end of year 1,949,000 1,949,000 0 0
Federal [Member]
       
Operating Loss Carryforwards [Line Items]        
Estimated net operating loss carryforwards     17,877,000  
Income Tax Examination [Line Items]        
Earliest year that remains subject to examination 2009 2009    
State [Member]
       
Operating Loss Carryforwards [Line Items]        
Estimated net operating loss carryforwards     $ 46,281,000  
Income Tax Examination [Line Items]        
Earliest year that remains subject to examination 2008 2008