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Note 7 - Debt and Credit Agreements (Tables)
 9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Debt [Table Text Block]
   
September 30,
    
December 31,
  
   
2020
    
2019
  
Line of credit
   $
7,649
     $
11,517
  
PPP Loans
    
9,151
      
—
  
Other notes payable
    
531
      
1,563
  
Long-term debt
    
342
      
342
  
Less: Current portion
    
(8,176
 )    
(12,917
 )
Long-term debt, net of current maturities
   $
9,497
     $
505