Note 4 - Segment Reporting (Details) - Percentage of Base Revenue, by Segment (Product Concentration Risk [Member], Sales Revenue, Services, Net [Member])	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Trucking [Member]
Three Months Ended
Percent of Base Revenue	68.20%	76.10%
SCS [Member]
Three Months Ended
Percent of Base Revenue	31.80%	23.90%