Annual report pursuant to section 13 and 15(d)

ACCRUED CLOSURE COSTS AND ASSET RETIREMENT OBLIGATIONS (ARO) (Details)

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ACCRUED CLOSURE COSTS AND ASSET RETIREMENT OBLIGATIONS (ARO) (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Closure Liabilities [Roll Forward]    
Balance as of December 31, 2010 $ 11,349,000 $ 11,937,000
Accretion expense 272,000 185,000
Payments   (773,000)
Adjustments to closure liability (6,399,000) 0
Adjustment to pretax loss from closure adjustment (448,000)  
Balance at end of year 5,222,000 11,349,000
Property and equipment:    
Balance at the starting of year 9,080,000 9,370,000
Adjustment to closure and post-closure asset (5,830,000) 0
Amortization of closure and post-closure asset (289,000) (290,000)
Balance at end of year $ 2,961,000 $ 9,080,000