v3.26.1
Note 3 - Fair Value of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

Level 1

  

Level 2

  

Level 3

  

Total

 

June 30, 2026

                

Financial assets:

                

Money market funds

 $43,545  $  $  $43,545 

U.S. Treasury securities

     8,390      8,390 

Commercial paper

     7,479      7,479 

Total assets

 $43,545  $15,869  $  $59,414 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

December 31, 2025

                

Financial assets:

                

Money market funds

 $46,164  $  $  $46,164 

U.S. Treasury securities

     14,060      14,060 

Total assets

 $46,164  $14,060  $  $60,224