v3.26.1
Note 6 - Concentrations (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Notes Tables    
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
  

Three Months Ended March 31,

 
  

2026

  

2025

 
  Revenue  %  Revenue  % 

Customer A

 $753   68% $344   49%

Customer B

 $-   -% $156   22%
Customer C $-   -% $189   27%

Customer I

 $188   17% $-   -%
Customer J $172   15% $-   -%
  

Year Ended December 31,

 
  

2025

  

2024

 

Customer A

 $2,122   43% $1,796   41%

Customer B

 $658   13% $494   11%

Customer I

 $546   11% $8   -%
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Long-Lived Asset [Table Text Block]
  

March 31, 2026

  

December 31, 2025

 

United States

 $175  $174 

Foreign, principally in Europe

  9   9 

Property and equipment, net

 $184  $183 
  

December 31, 2025

  

December 31, 2024

 

United States

 $174  $213 

Foreign, principally in Europe

  9   14 

Property and equipment, net

 $183  $227