v3.25.1
Note 4 - Marketable Securities
 3 Months Ended
Mar. 31, 2025
Notes to Financial Statements  
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

4.         Marketable Securities

 

The available-for-sale marketable securities are primarily comprised of investments in commercial paper, corporate bonds and government securities and consist of the following, measured at fair value on a recurring basis (in thousands):

 

    Fair Value Measurements Using Inputs Considered as of:  
   

March 31, 2025

    

December 31, 2024

  
   

Total

    

Level 1

    

Level 2

    

Level 3

    

Total

    

Level 1

    

Level 2

    

Level 3

  

Commercial paper and corporate bonds

   $ 25,816     $ —     $ 25,816     $ —     $ 28,291     $ —     $ 28,291     $ —  

Government securities

     8,915       —       8,915       —       12,831       —       12,831       —  

Total

   $ 34,731     $ —     $ 34,731     $ —     $ 41,122     $ —     $ 41,122     $ —  

 

Maturities of individual securities are less than 18 months, and the amortized cost of all securities approximated fair value as of March 31, 2025 and December 31, 2024. Accrued interest receivable on marketable securities is included in amounts receivable and was $229,000 and $235,000 as of March 31, 2025 and December 31, 2024, respectively.

 

There were no transfers of assets between Level 1 and Level 2 of the fair value measurement hierarchy during the three months ended March 31, 2025.