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Note 5 - Accumulated Other Comprehensive Loss (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
  

Three Months Ended

 
  

March 31,

 
  

2022

  

2021

 

Foreign currency translation

        

Balance at beginning of period

 $(1,604) $(1,370)

Other comprehensive loss:

        

Foreign currency translation adjustments (1)

  (70)  (193)

Total accumulated other comprehensive loss

 $(1,674) $(1,563)