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Note K - Environmental (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule Of Expected Future Payments Of Environmental Matters [Table Text Block]
  

(In thousands)

 

Years Ending December 31:

    

2021

 $180 

2022

  143 

2023

  130 

2024

  118 

2025

  106 

Thereafter

  293 
  $970