Note 8 - Leases (Tables)

12 Months Ended

Dec. 31, 2013

Leases [Abstract]

Schedule of Future Minimum Lease Payments for Operating and Capital Leases [Table Text Block]

	Operating		Capital
2014	$	23,731	$	9,741
2015	$	21,382	$	4,352
2016	$	16,460	$	3,876
2017	$	8,287	$	990
2018	$	5,195	$	990
Thereafter	$	21,808	$	4,168

Schedule of Rent Expense [Table Text Block]

(in thousands)	2013		2012		2011
Revenue equipment rentals	$	22,991	$	19,746	$	15,364
Building and lot rentals		4,044		3,714		3,266
Other equipment rentals		362		679		812
	$	27,397	$	24,139	$	19,442