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Basis of Presentation and Summary of Significant Accounting Policies (Details 3) (USD $)
9 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Assets held for sale    
Fair market value of assets held for sale $ 1,934,000 $ 2,000,000
Reduction in the carrying value of assets held for sale 100,000  
Proceeds from sale of equipment 500,000  
Gain on sale of equipment $ 400,000