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Note 5 - Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   

Total

   

Level 1

   

Level 2

   

Level 3

 

As of September 30, 2021

                               

Financial assets:

                               

Deferred compensation plan

  $ 4,427     $ 3,733     $ 694     $ -  

Foreign currency forward contracts

    37       -       37       -  

Total financial assets

  $ 4,464     $ 3,733     $ 731     $ -  
                                 

Financial liabilities:

                               

Foreign currency forward contracts

  $ (508

)

  $ -     $ (508

)

  $ -  
                                 

As of December 31, 2020

                               

Financial assets:

                               

Deferred compensation plan

  $ 4,717     $ 3,884     $ 833     $ -  
                                 

Financial liabilities:

                               

Foreign currency forward contracts

  $ (1,150

)

  $ -     $ (1,150

)

  $ -