Property, Equipment, and Depreciation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
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
Trailers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Salvage Value	4
Communications and Utilities Expense
Property, Plant and Equipment [Line Items]
Depreciation	$ 0	$ 300