XML 26 R17.htm IDEA: XBRL DOCUMENT v3.22.2.2
Note 11 - Marketable Securities
9 Months Ended
Sep. 30, 2022
Notes to Financial Statements  
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

Note 11.  Marketable Securities

 

   

September 30, 2022

   

December 31, 2021

 
           

Unrealized

   

Fair

           

Unrealized

   

Fair

 
   

Cost

   

Gains (Losses)

   

Value

   

Cost

   

Gains (Losses)

   

Value

 

Certificates of deposit - Current marketable securities

  $ 13     $     $ 13     $ 17     $     $ 17  

 

Certificates of deposit maturing in one year or less total $13 at  September 30, 2022.