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Stock-Based Compensation, Assumptions Used to Value Stock Options Granted (Details) - $ / shares
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Stock-Based Compensation [Abstract]    
Volatility 81.00% 136.89%
Risk-free interest rate 4.01% 4.04%
Expected term 5 years 11 months 23 days 6 years 21 days
Dividend rate 0.00% 0.00%
Fair value of option on grant date (in dollars per share) $ 1.28 $ 4.7