Annual report pursuant to Section 13 and 15(d)

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

v3.23.1
Note 5 - Cash, Cash Equivalents and Investments (Tables)
12 Months Ended
Dec. 31, 2022
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)

 

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     $  
   

Total

   

Quoted prices in active markets (Level 1)

   

Significant other observable inputs (Level 2)

   

Significant unobservable inputs (Level 3)

 

December 31, 2021

                               

Money market funds, included in cash equivalents

  $ 56,885     $ 56,885     $     $  

Total

  $ 56,885     $ 56,885     $     $  
Debt Securities, Available-for-Sale [Table Text Block]
   

Contractual maturity

                                 
   

(in days)

   

Amortized Cost

   

Unrealized gains

   

Unrealized losses

   

Fair Value

 

Investments

                                     

US treasuries

 

47-110

    $ 3,575     $     $ (2 )   $ 3,573  

Foreign treasuries

 

74

      899             (3 )     896  

Asset-backed securities

 

15

      500             (1 )     499  

Corporate bonds

 

5-228

      15,633             (67 )     15,566  

Total

        $ 20,607     $     $ (73 )   $ 20,534