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Note 4 - Financing Arrangements (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   
September 30,
   
December 31,
 
   
2020
   
2019
 
Real estate term notes bearing interest at one-month LIBOR + 2.25% (3.0% and 4.1% as of September 30, 2020 and December 31, 2019, respectively) maturing June 15, 2022 with monthly payments of approximately $41 plus interest secured by substantially all assets.
  $
1,188
    $
3,755
 
                 
Promissory Note
   
6,077
     
-
 
                 
     
7,265
     
3,755
 
                 
Debt issuance Costs
   
(91
)    
(132
)
                 
Total long-term debt
   
7,174
     
3,623
 
Current maturities of long-term debt
   
(444
)    
(444
)
Long-term debt - net of current maturities
  $
6,730
    $
3,179