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Note 11 - Restructuring (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Restructuring and Related Costs [Table Text Block]
  

Restructuring Liability

 
  

(in thousands)

 

Balance at December 31, 2019

 $882 

Amount charged to operating expenses

  858 

Cash payments

  (1,156)

Balance at September 30, 2020

 $584