XML 34 R22.htm IDEA: XBRL DOCUMENT v3.24.3
Note 3 - Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

Level 1

  

Level 2

  

Level 3

  

Total

 

September 30, 2024

                

Financial assets:

                

Money market funds

 $18,558  $  $  $18,558 

U.S. Treasury securities

     34,019      34,019 

Commercial paper

     2,657      2,657 

Total assets

 $18,558  $36,676  $  $55,234 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

December 31, 2023

                

Financial assets:

                

Money market funds

 $31,403  $  $  $31,403 

U.S. Treasury securities

     4,958      4,958 

Total assets

 $31,403  $4,958  $  $36,361