Annual report [Section 13 and 15(d), not S-K Item 405]

Share-Based Expense (Tables)

v3.25.4
Share-Based Expense (Tables)
12 Months Ended
Dec. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Schedule of share-based compensation expense
           
    Year Ended December 31,  
    2025     2024  
Research and development expenses   $     $ 11,433  
General and administrative expenses     64,787       160,381  
    $ 64,787     $ 171,814  
Schedule of assumptions used
           
    Year Ended December 31,  
    2025     2024  
Weighted-average expected dividend yield (%)            
Weighted-average expected volatility (%)     109.51       111.50  
Weighted-average risk-free interest rate (%)     3.78       4.20  
Weighted-average expected life of option (years)     5.5       5.67  
Weighted-average exercise price ($)     2.17       4.07  
Schedule of non-vested options
           
    Number of
shares
    Weighted-
average
grant date
fair value
 
Balance as of January 1, 2025     32,083     $ 3.49  
Granted     10,000       1.78  
Forfeited            
Vested     (18,749 )     (3.58 )
Balance as of December 31, 2025     23,334     $ 2.69  
Share-Based Payment Arrangement, Option [Member]  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Schedule of option activity
                               
    Number of
shares
    Weighted-
average
exercise
price
    Weighted-
average
remaining
life
(years)
    Aggregate
intrinsic
value
 
Outstanding as of January 1, 2024     201,388     $ 36.46       7.69     $  
Granted     30,000       4.07                  
Expired     (32,535 )     (61.90 )                
Outstanding as of December 31, 2024     198,853     $ 27.41       4.28     $ 3,300  
Granted     10,000       2.17                  
Expired     (93,231 )     (36.45 )                
Outstanding as of December 31, 2025     115,622     $ 17.95       7.01     $  
                                 
Vested or expected to vest as of December 31, 2025     115,622     $ 17.95       7.01     $  
                                 
Exercisable as of December 31, 2024     166,770     $ 31.84       3.28     $ 2,567  
Exercisable as of December 31, 2025     92,288     $ 21.57       6.49     $  
Non Employee Stock Options [Member]  
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Schedule of option activity
                       
    Number of
shares
    Weighted-
average
exercise
price
    Weighted-
average
remaining
life
(years)
    Aggregate
intrinsic
value
 
Outstanding as of January 1, 2024     1,925     $ 115.99       0.91     $  
Granted                            
Expired     (1,672 )     50.20                  
Outstanding as of December 31, 2024     253       550.80       0.68        
Granted                            
Expired     (253 )     550.80                  
Outstanding as of December 31, 2025         $           $  
                                 
Vested or expected to vest as of December 31, 2025         $           $  
                                 
Exercisable as of December 31, 2024     253     $ 550.80       0.68     $  
Exercisable as of December 31, 2025         $           $