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Property, Equipment, and Depreciation (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Property, Plant and Equipment [Line Items]    
Amortization Period of Tires 2 years  
Percentage of Tractor Fleet Depreciated at 150 Percent 100.00% 72.70%
Communications and Utilities Expense [Member]
   
Property, Plant and Equipment [Line Items]    
Depreciation $ 200,000 $ 200,000
Tractors [Member]
   
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment, Salvage Value 15,000  
Trailers [Member]
   
Property, Plant and Equipment [Line Items]    
Property, Plant, and Equipment, Salvage Value $ 4,000