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Note 5 - Inventories (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
December 31,
 
   
2015
   
2014
 
                 
New commercial vehicles
  $ 770,861     $ 749,615  
Used commercial vehicles
    86,960       84,972  
Parts and accessories
    201,868       186,208  
Other
    15,341       19,020  
Less allowance
    (13,832 )     (15,711 )
                 
Total
  $ 1,061,198     $ 1,024,104