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Note E - Segment Information (Tables)
3 Months Ended
Mar. 31, 2014
Segment Reporting [Abstract]  
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]
   

Three Months Ended March 31,

 
   

2014

   

2013

 
   

Amount

   

%

   

Amount

   

%

 
   

(in thousands, except percentage data)

 
                                 

Truckload Services revenue

  $ 69,447       92.7     $ 70,908       91.1  

Brokerage and Logistics Services revenue

    5,449       7.3       6,920       8.9  

Total revenues

  $ 74,896       100.0     $ 77,828       100.0