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

The assumptions used in the valuation of stock options granted during the years ended December 31, 2025 and 2024 were as follows: (Details)

v3.25.4
The assumptions used in the valuation of stock options granted during the years ended December 31, 2025 and 2024 were as follows: (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Risk-free interest rate - Minimum 3.88% 3.58%
Risk-free interest rate - Maximum 4.30% 5.33%
Expected stock price volatility - minimum 149.34% 111.89%
Expected stock price volatility - maximum 153.44% 140.42%
Expected dividend yield 0.00% 0.00%
Minimum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Expected term of option 5 years 6 months 5 years 3 months
Maximum [Member]    
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Expected term of option 6 years 29 days 10 years