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

Stock Options (Details - Option pricing model assumptions)

v3.25.1
Stock Options (Details - Option pricing model assumptions) - Share-Based Payment Arrangement, Option [Member] - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Exercise price $ 0.95 $ 1.43
Dividend yield 0.00% 0.00%
Volatility 92.13% 98.78%
Risk-free interest rate 4.26% 3.90%
Expected life 5 years 5 years