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Stock-Based Compensation (Details - Valuation Assumptions) - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]    
Weighted average grant date fair value $ 3.32 $ 8.09
Expected dividend yield 0.00% 0.00%
Risk-free interest rate 2.17% 0.70%
Expected volatility 129.54% 66.72%
Expected life (in years) 6 years 9 months 3 days 4 years 3 months 14 days