Prepaid Tires, Property, Equipment and Depreciation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Property, Plant and Equipment [Line Items]
Amortization Period of Tires			2 years
Tractors [Member]
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Salvage Value	$ 15		$ 15
Trailers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Salvage Value	4		4
Communications and Utilities Expense
Property, Plant and Equipment [Line Items]
Depreciation	$ 300	$ 300	$ 800	$ 800