Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Marketable Securities (Tables)

v3.19.2
Note 4 - Marketable Securities (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
Fair Value, Marketable Securities Measured on a Recurring Basis [Table Text Block]
   
 
 
 
 
Fair Value Measurements as of
June 30
, 2019
Using Inputs Considered as
 
   
Fair Value
   
Level 1
   
Level 2
   
Level 3
 
Commercial paper and corporate bonds
  $
2,994
    $
    $
2,994
    $
 
Government securities
   
4,998
     
     
4,998
     
 
Total marketable securities
  $
7,992
    $
    $
7,992
    $