v3.26.1
Note 10 - Fair Value (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

June 30, 2026

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

Assets

                

Money Market Funds (included in Cash and cash equivalents)

 $401  $  $  $401 
  

December 31, 2025

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

Assets

                

Money Market Funds (included in Cash and cash equivalents)

 $1,206  $  $  $1,206 
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]
  

June 30, 2026

 
  

Carrying Value

  

Estimated Fair Value

 

Long-term notes payable

 $2,750  $2,664 
  

December 31, 2025

 
  

Carrying Value

  

Estimated Fair Value

 

Long-term notes payable

 $2,750  $2,662