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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2014
Fair Value Measurements [Abstract]  
Schedule Assets And Liabilities At Fair Value
Level 1 Level 2 Level 3
Maufacured Methane facilities $ - $ - $ 1,634
Reconciliation Of The Change In Value
Balance December 31, 2013 $ 4,389
Additions 204
Depreciation Expense (163 )
Balance at December 31, 2014 prior to impairment 4,430
Pre-tax non-cash impairment (2,796 )
Balance December 31, 2014 $ 1,634