Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Cash, Cash Equivalents and Investments (Tables)

v3.23.2
Note 5 - Cash, Cash Equivalents and Investments (Tables)
 6 Months Ended
Jun. 30, 2023
Notes Tables  
Cash, Cash Equivalents and Investments [Table Text Block]
   

Total

    

Quoted prices in active markets (Level 1)

    

Significant other observable inputs (Level 2)

    

Significant unobservable inputs (Level 3)

  

June 30, 2023

                                

Money market funds, included in cash equivalents

   $ 36,705     $ 36,705     $ —     $ —  

Investments - US treasuries

     8,141       8,141       —       —  

Investments - Corporate bonds

     1,796       —       1,796       —  

Total

   $ 46,642     $ 44,846     $ 1,796     $ —  
   

Total

    

Quoted prices in active markets (Level 1)

    

Significant other observable inputs (Level 2)

    

Significant unobservable inputs (Level 3)

  

December 31, 2022

                                

Money market funds, included in cash equivalents

   $ 17,618     $ 17,618     $ —     $ —  

Investments - US treasuries

     3,573       3,573       —       —  

Investments - Foreign treasuries

     896       896       —       —  

Investments - Asset-backed securities

     499       —       499       —  

Investments - Corporate bonds

     15,566       —       15,566       —  

Total

   $ 38,152     $ 22,087     $ 16,065     $ —  
Debt Securities, Available-for-Sale [Table Text Block]
   

Contractual maturity

                                 
   

(in days)

    

Amortized Cost

    

Unrealized gains

    

Unrealized losses

    

Fair Value

  

Investments

                                        

US treasuries

     20-160     $ 8,141     $ 1     $ (1 )   $ 8,141  

Corporate bonds

     5-47       1,797       —       (1 )     1,796  

Total

           $ 9,938     $ 1     $ (2 )   $ 9,937