v3.26.1
Note 6 - Concentrations (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
  

Six Months Ended June 30,

 
  

2026

  

2025

 

Customer A

 $3,310   81% $1,060   39%

Customer C

 $-   0% $546   20%

Customer E

 $-   0% $316   12%
Customer F $-   0% $361   13%
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Long-Lived Asset [Table Text Block]
  

June 30, 2026

  

December 31, 2025

 

United States

 $154  $174 

Foreign, principally in Europe

  8   9 

Property and equipment, net

 $162  $183