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Equity Incentive Plans - Stock Options Outstanding (Details) - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Number of Stock Options    
Beginning Balance (in shares) 701,103  
Forfeited or expired (in shares) (621,103)  
Ending Balance (in shares) 80,000 701,103
Exercisable (in shares) 80,000 701,103
Weighted Average Grant Date Fair Value    
Beginning Balance (usd per share) $ 4.11  
Forfeited or expired (usd per share) 4.07  
Ending Balance (usd per share) 4.44 $ 4.11
Exercisable (usd per share) 4.44 4.11
Weighted Average Exercise Price    
Beginning Balance (usd per share) 15.09  
Forfeited or expired (usd per share) 14.76  
Ending Balance (usd per share) 17.67 15.09
Exercisable (usd per share) $ 17.67 $ 15.09
Weighted Average Contractual Life (years)    
Outstanding 1 year 7 months 9 days 7 months 17 days
Exercisable 1 year 7 months 9 days 7 months 17 days