Note 8 - Leases (Tables)

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

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

	Operating		Capital
2015	$	13,589	$	2,096
2016		11,927		4,336
2017		8,487		1,507
2018		5,599		1,507
2019		3,737		1,507
Thereafter		18,142		5,963
Total minimum lease payments	$	61,481	$	16,916
Less: amount representing interest				(1,938	)
Present value of minimum lease payments				14,978
Less: current portion				(1,606	)
Capital lease obligations, long-term			$	13,372

Schedule of Rent Expense [Table Text Block]

(in thousands)	2014		2013		2012
Revenue equipment rentals	$	20,935	$	22,991	$	19,746
Building and lot rentals		3,561		4,044		3,714
Other equipment rentals		317		362		679
	$	24,813	$	27,397	$	24,139