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Note 11 - Accumulated Other Comprehensive Income (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Balance as of December 31, 2020

 $869 

Foreign currency translation adjustment

  255 

Balance as of March 31, 2021

 $1,124 

Foreign currency translation adjustment

  312 

Balance as of June 30, 2021

 $1,436