v3.26.1
Note 3 - Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2026
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
              

Weighted

 
          

Weighted

  

Average

 
  

Number of

  

Range of

  

Average

  

Remaining

 
  

Shares Under

  

Warrant Price

  

Exercise

  

Contractual

 
  

Warrant

  

Per Share

  

Price

  

Life

 

Balance at December 31, 2025

  1,250,000  

$0.01 - $0.03

  $0.014   4.0 

Granted

            

Expired

            

Canceled

            

Balance at March 31, 2026

  1,250,000  

$0.01 - $0.03

  $0.014   3.7 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
          

Weighted

     
      

Weighted

  

Average

     
  

Number of

  

Average

  

Remaining

  

Aggregate

 
  

Shares Under

  

Exercise

  

Contractual

  

Intrinsic

 
  

Options

  

Price

  

Life

  

Value

 

Balance at December 31, 2025

  65,715,835  $0.06   5.6  $ 

Granted

  41,000   0.03   9.8    

Forfeited/Expired

  (330,000)  0.16       

Exercised

            

Balance at March 31, 2026

  65,426,835  $0.07   5.7  $660 

Vested and Exercisable at March 31, 2026

  55,149,882  $0.06   4.9  $