v3.26.1
Note 3 - Stockholders' Equity (Tables)
6 Months Ended
Jun. 30, 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 June 30, 2026

  1,250,000  

$0.01 - $0.03

  $0.014   3.5 
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  $104,475 

Granted

  106,000   0.04   9.7    

Forfeited/Expired

  (340,000)  0.16       

Exercised

            

Balance at June 30, 2026

  65,481,835  $0.06   5.4  $527,715 

Vested and Exercisable at June 30, 2026

  55,263,216  $0.06   4.7  $524,225