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Note 8 - Accumulated Other Comprehensive Income (Loss) (Tables)
6 Months Ended
Jun. 30, 2020
Notes Tables  
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
   

Three Months Ended
June 30,

   

Six Months Ended
June 30,

 
   

2020

   

2019

   

2020

   

2019

 

Pension and other postretirement benefits:

                               

Recognized actuarial loss (a)

  $ 698     $ 479     $ 1,287     $ 877  

Settlement loss (a)

    1,904       -       3,382       -  

Total before income tax

  $ 2,602     $ 479     $ 4,669     $ 877  

Income tax

    (590

)

    (101

)

    (1,078

)

    (183

)

Net of income tax

  $ 2,012     $ 378     $ 3,591     $ 694  
Comprehensive Income (Loss) [Table Text Block]
   

Currency
Translation
Adjustments

   

Pension and
Other
Postretirement
Benefits

   

Accumulated
Other
Comprehensive
Income (Loss)

 

Balance at December 31, 2019

  $ (8,155

)

  $ (20,382

)

  $ (28,537

)

Reclassification adjustments

    -       4,669       4,669  

Current period charge

    (1,247

)

    -       (1,247

)

Income tax benefit (charge)

    -       (1,078

)

    (1,078

)

Balance at June 30, 2020

  $ (9,402

)

  $ (16,791

)

  $ (26,193

)

   

Currency
Translation
Adjustments

   

Pension and
Other
Postretirement
Benefits

   

Accumulated
Other
Comprehensive
Income (Loss)

 

Balance at December 31, 2018

  $ (8,243

)

  $ (15,180

)

  $ (23,423

)

Reclassification adjustments

    -       877       877  

Current period charge

    431       -       431  

Income tax benefit (charge)

    -       (183

)

    (183

)

Balance at June 30, 2019

  $ (7,812

)

  $ (14,486

)

  $ (22,298

)