Equity Incentive Plans and Warrants - Stock Options Granted (Details) - 2021 Stock Option Plan [Member]	9 Months Ended
	Sep. 30, 2025
Employees [Member]
Equity Incentive Plans and Warrants [Abstract]
Expected term (in years)	6 years 21 days
Risk‑free interest rate	4.37%
Dividend yield	0.00%
Expected volatility	91.16%
Nonemployee [Member]
Equity Incentive Plans and Warrants [Abstract]
Expected term (in years)	5 years 6 months
Risk‑free interest rate	3.91%
Dividend yield	0.00%
Expected volatility	90.77%