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Note 3 - Goodwill and Intangible Assets (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Goodwill [Table Text Block]

(in thousands)

    

Carrying amount at December 31, 2021

 $57,689 

Effect of change in currency translation

  (1,457)

Carrying amount at June 30, 2022

 $56,232 
Schedule of Intangible Assets and Goodwill [Table Text Block]
      

June 30, 2022

  

December 31, 2021

 

(in thousands)

 

Average

      

Accumulated

          

Accumulated

     

Amortizable intangible assets:

 

Life*

  

Gross

  

Amortization

  

Net

  

Gross

  

Amortization

  

Net

 

Distribution agreements/customer relationships

  7.4  $17,182  $(8,965) $8,217  $17,689  $(8,675) $9,014 

Existing technology

  3.7   38,220   (25,348)  12,872   38,707   (23,962)  14,745 

Trade names and patents

  4.0   8,324   (5,416)  2,908   8,496   (5,108)  3,388 

Total amortizable intangible assets

     $63,726  $(39,729) $23,997  $64,892  $(37,745) $27,147 

Indefinite-lived intangible assets:

              222           238 

Total intangible assets

             $24,219          $27,385 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
  

Amortization

 

 

 

Expense

 

(in thousands)

    

2022 (remainder of year)

 $2,870 

2023

  5,672 

2024

  5,375 

2025

  4,100 

2026

  2,360 

Thereafter

  3,620 

Total

 $23,997