v3.26.1
Note 4 - Equity (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]
      

Fair Value Measurement at June 30, 2026

 
  

Carrying Value

  

Level 1

  

Level 2

  

Level 3

 

Liabilities:

                

Derivative liability

 $22,500        $22,500 

Totals liabilities measured and recorded at fair value

 $22,500  $  $  $22,500 
                 
      

Fair Value Measurement at December 31, 2025

 
  

Carrying Value

  

Level 1

  

Level 2

  

Level 3

 

Liabilities:

                

Derivative liability

 $22,500        $22,500 

Totals liabilities measured and recorded at fair value

 $22,500  $  $  $22,500 
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
  

June 30, 2026

  

December 31, 2025

 

Closing stock price:

 $11.42  $38.50 

Volatility:

  180.0%  225.0%

Expected term (in years):

  1.00   1.50 

Risk-free rate:

  3.5%  3.5%
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
  

2026

  

2025

 
  Number of  Weighted Average  Number of  Weighted Average 
  

Warrants

  

Exercise Price

  

Warrants

  

Exercise Price

 

Outstanding at January 1,

  60,009  $559.45   1,816  $11,825.20 

Warrants cancelled or expired

  1   317,680.00       

Outstanding at March 31,

  60,008  $554.17   1,816  $11,825.20 

Outstanding at June 30,

  60,008  $554.17   1,816  $11,825.20 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
  

2026

  

2025

 
  Number of  Weighted Average  Number of  Weighted Average 
  

Options

  

Exercise Price

  

Options

  

Exercise Price

 

Outstanding at January 1,

  300  $134,934.51   301  $134,392.67 

Options expired or cancelled

        1   94,160.00 

Outstanding at March 31,

  300  $134,934.51   300  $134,526.78 

Options expired or cancelled

  95   111,904.51       

Outstanding at June 30,

  205  $152,847.85   300  $134,526.78 
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
  

2026

  

2025

 
  

Number of

  

Weighted Average

  

Number of

  

Weighted Average

 
  

Units

  

Grant Date Fair Value

  

Units

  

Grant Date Fair Value

 

Outstanding at January 1,

  6,435  $48.74   116  $12,269.17 

Restricted stock units granted

        78   485.10 

Restricted stock units vested

  1,535   54.27   18   64,665.33 

Restricted stock units witheld for taxes

  1,027   44.22   1   72,600.00 

Restricted stock units forfeited or cancelled

        2   36,894.00 

Outstanding at March 31,

  3,873  $47.75   173  $871.09 

Restricted stock units granted

  12   20.20       

Restricted stock units vested

  1,321   44.22   81   1,188.00 

Restricted stock units witheld for taxes

        14   1,188.00 

Outstanding at June 30,

  2,564  $49.44   78  $485.10