Annual report pursuant to Section 13 and 15(d)

Note 4 - Marketable Securities (Tables)

v3.22.0.1
Note 4 - Marketable Securities (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Fair Value, Marketable Securities Measured on a Recurring Basis [Table Text Block]
           

Fair Value Measurements as of December 31, 2021

Using Inputs Considered as

 
   

Fair Value

   

Level 1

   

Level 2

   

Level 3

 

Commercial paper and corporate bonds

  $ 29,421     $ —     $ 29,421     $ —  

Government securities

    10,984       —       10,984       —  

Total marketable securities

  $ 40,405     $ —     $ 40,405     $ —  
           

Fair Value Measurements as of December 31, 2020

Using Inputs Considered as

 
   

Fair Value

   

Level 1

   

Level 2

   

Level 3

 

Commercial paper and corporate bonds

  $ 10,678     $ —     $ 10,678     $ —  

Bank certificates of deposit

    496       —       496       —  

Government securities

    8,924       —       8,924       —  

Total marketable securities

  $ 20,098     $ —     $ 20,098     $ —