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Note 5 - Fair Value Measurements (Tables)
 6 Months Ended
Jun. 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 June 30, 2021

                

Financial assets:

                

Deferred compensation plan

 $4,496  $3,813  $683  $- 

Foreign currency forward contracts

  9   -   9   - 

Total financial assets

 $4,505  $3,813  $692  $- 
                 

Financial liabilities:

                

Foreign currency forward contracts

 $(827

)

 $-  $(827

)

 $- 
                 

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

)

 $-