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Note 20 - Revenue (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Disaggregation of Revenue [Table Text Block]
   
Year Ended
December 31, 2018
 
Commercial vehicle sales revenue
  $
3,558,637
 
Parts revenue
   
937,241
 
Commercial vehicle repair service revenue
   
732,811
 
Finance revenue
   
10,795
 
Insurance revenue
   
9,740
 
Other revenue
   
18,728
 
Total
  $
5,267,952