v3.26.1
Note 4 - Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2025
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
              

Weighted

 
          

Weighted

  

Average

 
      

Range of

  

Average

  

Remaining

 
  

Number of Shares

  

Warrant Price

  

Exercise

  

Contractual

 
  

Under Warrant

  

Per Share

  

Price

  

Life

 

Balance at December 31, 2023

  5,694,445  

$0.01-$0.03

  $0.024   2.6 

Granted

            

Expired

            

Canceled

            

Balance at December 31, 2024

  5,694,445  

$0.01-$0.03

  $0.024   1.6 

Granted

            

Expired

  (4,444,445)  0.03   0.027    

Canceled

            

Ending Balance at December 31, 2025

  1,250,000  

$0.01-$0.03

  $0.014   4.0 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
          

Weighted

     
  

Number of

  

Weighted

  

Average

     
  

Shares

  

Average

  

Remaining

  

Aggregate

 
  

Under

  

Exercise

  

Contractual

  

Intrinsic

 
  

Option

  

Price

  

Life

  

Value

 

Balance at December 31, 2024

  67,556,835  $0.07   6.5  $104,475 

Granted

  105,000   0.02   9.4    

Forfeited/Expired

  (1,946,000)  0.44       

Exercised

            

Balance at December 31, 2025

  65,715,835  $0.06   5.6  $ 

Vested and Exercisable at December 31, 2025

  45,418,930  $0.06   4.5  $