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Note 5 - Credit Facilities and Other Debt (Tables)
 9 Months Ended
Sep. 30, 2018
Notes Tables  
Schedule of Debt [Table Text Block]
   
Interest Rate
as of
September
30
,
2018
    
2018
    
2019
    
2020
    
2021
    
2022
    
2023
  
USA - PNC Bank
    
 
4.756%
 
     $
8,217
     $
–
     $
–
    
$
–
    
$
–
    
$
–
  
USA – Fifth Third Bank
    
 
4.725%
 
    
 
–
      
–
      
682
    
 
–
    
 
–
    
 
–
  
USA – Resource Plus Seller Notes
    
 
1.85%
 
      
333
      
333
      
334
      
300
      
300
      
1,100
  
Australia - National Australia Bank
    
 
6.6%
 
      
400
      
–
    
 
–
    
 
–
    
 
–
    
 
–
  
Mexico – Bancomer and shareholder
    
7.75
–
12.11%
      
161
      
–
      
171
    
 
–
    
 
–
    
 
–
  
Brazil – Various Banks
    
11.04
–
14.28%
      
524
      
–
      
–
    
 
–
    
 
–
    
 
–
  
Total
    
 
 
 
     $
9,635
     $
333
     $
1,187
     $
300
     $
300
     $
1,100
  
Credit And Debt Facilities Unused Availability [Table Text Block]
   
September 30, 2018
    
December 31, 2017
  
Unused Availability:
                
United States
   $
3,694
     $
3,530
  
Australia
    
178
      
731
  
Mexico
    
177
      
254
  
Brazil
    
1,994
      
1,554
  
Total Unused Availability
   $
6,043
     $
6,069