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Note 9 - Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2026
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
  Foreign Currency Translation Adjustments  Unrealized Losses on Available-For-Sale Investments  

Total

 

Balance, December 31, 2025

 $(774) $(10) $(784)

Other comprehensive income (loss)

  16   (7)  9 

Balance, March 31, 2026

 $(758) $(17) $(775)