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Note 3 - Business Combination - Acquisition of Zenith (Details) - Allocation of Fair Value of the Acquired Business - USD ($)
$ in Thousands
May. 30, 2015
Feb. 02, 2015
Nov. 29, 2014
Liabilities assumed:      
Goodwill $ 11,589   $ 1,730
Zenith Freight Lines [Member]      
Identifiable assets acquired:      
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  
Liabilities assumed:      
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