Note 5 - Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

(in thousands)	Estimated Useful Lives (years)			2013		2012
Revenue equipment	3	-	10	$	372,968	$	331,761
Communications equipment	5	-	10		9,084		13,089
Land and improvements	0	-	10		19,009		16,658
Buildings and leasehold improvements	7	-	40		41,876		41,050
Construction in-progress		-			1,859		1,310
Other	2	-	7		17,580		16,079
				$	462,376	$	419,947