Note 3 - Allocation of Fair Value of the Acquired Business (Details) $ in Thousands	Feb. 02, 2015 USD ($)
Zenith Freight Lines [Member]
Acquired cash and cash equivalents	$ 1,677
Accounts receivable, net	3,399
Prepaid expenses and other current assets	496
Property and equipment	18,110
Other long-term assets	646
Intangible assets	6,362
Total identifiable assets acquired	30,690
Accounts payable and accrued liabilities	(4,038)
Notes payable	(4,329)
Total liabilities assumed	(8,367)
Net identifiable assets acquired	22,323
Goodwill	9,858
Total net assets acquired	$ 32,181