Takeda Asset Purchase and Stock Purchase Agreements - Summary of Fair Value of Series A Convertible Preferred Stock Using Black-Scholes Option-pricing Model (Details)	1 Months Ended
	Oct. 31, 2021 $ / shares	Dec. 31, 2021 $ / shares
Business Acquisition [Line Items]
Common Stock price		$ 0.67
Series A Convertible Preferred Stock | Credit Spread | Millennium | Millennium Asset Purchase Agreement
Business Acquisition [Line Items]
Measurement input	0.124
Series A Convertible Preferred Stock | Probability of a Qualified Financing | Millennium | Millennium Asset Purchase Agreement
Business Acquisition [Line Items]
Measurement input	0.75
Series A Convertible Preferred Stock | Expected Timing of a Qualified Financing | Millennium | Millennium Asset Purchase Agreement
Business Acquisition [Line Items]
Expected term	6 months
Series A Convertible Preferred Stock | Expected Term | Millennium | Millennium Asset Purchase Agreement
Business Acquisition [Line Items]
Expected term	8 months 12 days
Series A Convertible Preferred Stock | Volatility | Millennium | Millennium Asset Purchase Agreement
Business Acquisition [Line Items]
Measurement input	0.55
Series A Convertible Preferred Stock | Risk-free Interest Rate | Millennium | Millennium Asset Purchase Agreement
Business Acquisition [Line Items]
Measurement input	0.0008
Series A Convertible Preferred Stock | Common Stock Price | Millennium | Millennium Asset Purchase Agreement
Business Acquisition [Line Items]
Common Stock price	$ 2.04