Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Fair Value Measurements (Tables)

v3.22.1
Note 4 - Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Debt Securities, Available-for-Sale [Table Text Block]
     

March 31, 2022

   

December 31, 2021

 
 

Fair Value Level1

 

Adjusted Cost

   

Gross Unrealized Losses

   

Fair Value

   

Adjusted Cost

   

Gross Unrealized Losses

   

Fair Value

 

Money market funds

Level 1

  $ 5,385     $     $ 5,385     $ 20,711     $     $ 20,711  

Government and municipal debt securities

Level 2

    30,176       (17 )     30,159       14,006       (2 )     14,004  

Corporate debt securities

Level 2

    28,798       (24 )     28,774       31,863       (16 )     31,847  

Total investments

  $ 64,359     $ (41 )   $ 64,318     $ 66,580     $ (18 )   $ 66,562