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Note 9 - Stock-based Compensation (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Three Months Ended March 31,

  

2025

 

2024

Restricted stock awards

 $9  $9 

Total

 $9  $9 
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
  

Number of Shares

 

Weighted Average Grant Date Fair Value

 

Aggregate Grant Date Fair Value

Balance as of December 31, 2024

  20,118  $5.22  $105 

Granted

  16,156   6.50   105 

Vested

         

Canceled

         

Balance as of March 31, 2025

  36,274  $5.79  $210