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Note 6 - Impairement Losses and Restructuring Cost (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Restructuring and Related Costs [Table Text Block]
   

Employee related

   

Facilities related

   

Total

 

Balance as of December 31, 2019

  $ 1,326     $ 514     $ 1,840  

Accruals/(reversals)

    1,583       31       1,614  

Payments

    (1,168 )     (178 )     (1,346 )

Balance as of March 31, 2020

  $ 1,741     $ 367     $ 2,108