Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Marketable Securities (Tables)

v3.19.1
Note 4 - Marketable Securities (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Fair Value, Marketable Securities Measured on a Recurring Basis [Table Text Block]
   
 
 
 
 
Fair Value Measurements as of March 31, 2019 Using
Inputs Considered as
 
   
Fair Value
   
Level 1
   
Level 2
   
Level 3
 
Commercial paper and corporate bonds
  $
3,978
    $
    $
3,978
    $
 
Government securities
   
6,980
     
     
6,980
     
 
Total marketable securities
  $
10,958
    $
    $
10,958
    $