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

Schedule of Stock Option Activity (Details)

v3.26.1
Schedule of Stock Option Activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]      
Outstanding at December 31, 2024 687,356 934,243  
Weighted average exercise price, outstanding at beginning $ 46.71 $ 41.67  
Weighted average contractual term in years 6 years 6 months 4 years 7 months 6 days 7 years 4 months 24 days
Number of options, granted 116,500  
Weighted average exercise price, granted $ 0.59  
Number of options, exercised  
Weighted average exercise price, exercised  
Number of options, forfeited (3,101) (188,618)  
Weighted average exercise price, forfeited $ 20.19 $ 18.97  
Number of options, expired (343,536) (58,269)  
Weighted average exercise price, expired $ 47.19 $ 56.76  
Outstanding at December 31, 2025 457,219 687,356 934,243
Weighted average exercise price, outstanding at beginning ending $ 34.76 $ 46.71 $ 41.67