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Note 5 - Goodwill and Other Intangibles (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Goodwill [Table Text Block]
  

(in thousands)

 

Balance at December 31, 2019

 $39,951 
     

Additions for acquisitions

  27,300 

Purchase price adjustments

  (1,345)

Effects of currency exchange

  39 
     

Balance at September 30, 2020

 $65,945 
Schedule of Finite-Lived Intangible Assets [Table Text Block]
  

September 30, 2020

  

December 31, 2019

 
  

Gross

      

Net

  

Gross

      

Net

 
  

Carrying

  

Accumulated

  

Carrying

  

Carrying

  

Accumulated

  

Carrying

 
  

Value

  

Amortization

  

Value

  

Value

  

Amortization

  

Value

 
  

(in thousands)

 

Product technology and intellectual property

 $29,951  $7,202  $22,749  $13,502  $5,722  $7,780 

Trademarks, tradenames and licenses

  4,000   947   3,053   1,807   702   1,105 

Customer relationships

  38,525   4,759   33,766   18,215   3,364   14,851 

Other intangible assets

  1,767   795   972   1,725   568   1,157 
                         

Total identifiable intangible assets

 $74,243  $13,703  $60,540  $35,249  $10,356  $24,893 
Finite-lived Intangible Assets Amortization Expense [Table Text Block]
  

Three months ended September 30,

  

Nine months ended September 30,

 
  

2020

  

2019

  

2020

  

2019

 
  

(in thousands)

  

(in thousands)

 
                 

Amortization expense

 $1,681  $600  $3,409  $1,711 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
  Year ended December 31, 
  

2020

  

2021

  

2022

  

2023

  

2024

  

2025

 
  

(in thousands)

 
                         

Amortization expense

 $1,601  $6,179  $5,974  $5,901  $5,705  $5,467