v3.26.1
Note 4 - Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Debt Securities, Available-for-Sale [Table Text Block]
   

June 30, 2026

  

December 31, 2025

 
 

Fair Value Level1

 

Adjusted Cost

  

Gross Unrealized Losses

  

Fair Value

  

Adjusted Cost

  

Gross Unrealized Losses

  

Fair Value

 

Money market funds

Level 1

 $5,197  $  $5,197  $581  $  $581 

Municipal debt securities

Level 2

  2,510   (1)  2,509   4,893   (1)  4,892 

Corporate debt securities

Level 2

  6,713   (8)  6,705   17,513   (9)  17,504 

Total investments

 $14,420  $(9) $14,411  $22,987  $(10) $22,977