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Note K - Pension Liability (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
   
Nine
months ended
September
30,
 
   
2019
   
2018
 
Components of net periodic benefit cost:
               
Service cost and amortization of loss
  $
15
    $
18
 
Interest cost
   
11
     
12
 
                 
Net periodic benefit cost
  $
26
    $
30