v3.26.3
Note 7 - Investments (Tables)
9 Months Ended
Sep. 30, 2026
Notes Tables  
Marketable Securities [Table Text Block]
  

Amortized

  

Unrealized

  

Unrealized

     
  

Cost Basis

  

Gains

  

Losses

  

Fair Value

 

Assets:

                

Cash equivalents

                

Money market funds

 $1,367  $—  $—  $1,367 

Marketable securities:

                

U.S. government

  4,986   —   (1)  4,985 

Total assets at fair value

 $6,353  $—  $(1) $6,352 
Investments Classified by Contractual Maturity Date [Table Text Block]
  

September 30,

  

December 31,

 
  

2026

  

2025

 

Maturities within one year

 $6,352  $49,329 

Maturities after one year through three years

  —   — 

Total investments

 $6,352  $49,329