Takeda Asset Purchase and Stock Purchase Agreements - Summary of Fair Value of Series A Convertible Preferred Stock Using Black-Scholes Option-pricing Model (Details) - Millennium Asset Purchase Agreement - Millennium - Series A Convertible Preferred Stock	1 Months Ended
	Oct. 31, 2021 $ / shares
Credit Spread
Business Acquisition [Line Items]
Measurement input	0.124
Probability of a Qualified Financing
Business Acquisition [Line Items]
Measurement input	0.75
Expected Timing of a Qualified Financing
Business Acquisition [Line Items]
Expected term	6 months
Expected Term
Business Acquisition [Line Items]
Expected term	8 months 12 days
Volatility
Business Acquisition [Line Items]
Measurement input	0.55
Risk-free Interest Rate
Business Acquisition [Line Items]
Measurement input	0.0008
Common Stock Price
Business Acquisition [Line Items]
Common stock price	$ 2.04