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Note 9 - Allowance for Credit Losses (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Accounts Receivable, Allowance for Credit Loss [Table Text Block]
  

Three Months Ended September 30, 2020

  

Nine Months Ended September 30, 2020

 

Balance at beginning of period

 $11,097  $6,968 
Adoption of ASU 2016-13  -   1,147 
Provision for credit losses  152   3,982 
Charge-offs  (336)  (615)
Currency translation  270   (299)

Balance at end of period

 $11,183  $11,183