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Note 16 - Segment Information (Tables)
12 Months Ended
Dec. 31, 2014
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]

Year Ended December 31, 2014

 

Truckload

   

Other

   

Unallocated Corporate

Overhead

   

Consolidated

 

Revenue

  $ 663,001     $ 59,796     $ -     $ 722,797  

Intersegment revenue

    -       (3,817 )     -       (3,817 )

Operating income (loss)

    54,151       3,894       (18,399 )     39,646  

Depreciation and amortization

    45,669       59       656       46,384  

Total assets

    463,900       27,338       62,779       554,017  

Capital expenditures (proceeds), net (1)

    87,871       14       1,570       89,455  
                                 

Year Ended December 31, 2013

                               

Revenue

  $ 644,403     $ 51,702     $ -     $ 690,327  

Intersegment revenue

    -       (5,778 )     -       (5,778 )

Operating income (loss)

    27,746       1,271       (8,623 )     20,394  

Depreciation and amortization

    42,848       72       775       43,694  

Total assets

    402,637       20,883       42,902       466,422  

Capital expenditures (proceeds), net (1)

    90,336       10       1,630       91,976  
                                 

Year Ended December 31, 2012

                               

Revenue

  $ 647,986     $ 33,250     $ -     $ 681,236  

Intersegment revenue

    -       (6,982 )     -       (6,982 )

Operating income (loss)

    34,185       (741 )     (10,235 )     23,209  

Depreciation and amortization

    42,015       26       1,181       43,222  

Total assets

    363,223       11,963       25,046       400,232  

Capital expenditures, net

    (16,677 )     -       939       (15,738 )