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Note 3 - Goodwill and Intangible Assets (Tables)
9 Months Ended
Sep. 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

  (2,838)

Carrying amount at September 30, 2022

 $54,851 
Schedule of Intangible Assets and Goodwill [Table Text Block]
      

September 30, 2022

  

December 31, 2021

 

(in thousands)

 

Average

      

Accumulated

          

Accumulated

     

Amortizable intangible assets:

 

Life*

  

Gross

  

Amortization

  

Net

  

Gross

  

Amortization

  

Net

 

Distribution agreements/customer relationships

  7.3  $16,716  $(9,034) $7,682  $17,689  $(8,675) $9,014 

Existing technology

  3.5   37,744   (25,748)  11,996   38,707   (23,962)  14,745 

Trade names and patents

  3.8   8,162   (5,583)  2,579   8,496   (5,108)  3,388 

Total amortizable intangible assets

     $62,622  $(40,365) $22,257  $64,892  $(37,745) $27,147 

Indefinite-lived intangible assets:

              207           238 

Total intangible assets

             $22,464          $27,385 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

(in thousands)

    

2022 (remainder of year)

 $1,564 

2023

  5,486 

2024

  5,194 

2025

  4,009 

2026

  2,348 

Thereafter

  3,656 

Total

 $22,257