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Note K - Pension Liability (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
   
Six months ended June 30,
 
   
201
9
   
201
8
 
Components of net periodic benefit cost:
               
Service cost and amortization of loss
  $
10
    $
12
 
Interest cost
   
8
     
8
 
                 
                 
Net periodic benefit cost
  $
18
    $
20