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Stockholders' Deficit (Tables)
 3 Months Ended
Mar. 31, 2023
Equity [Abstract]  
Summary of Warrants and Pre-funded Warrants Outstanding
The following table summarizes the warrants and pre-funded warrants outstanding for the Company as of March 31, 2023 and December 31, 2022:

March 31, 2023December 31, 2022Weighted average exercise price
Warrants outstanding from 2021 agreement, expiring December 7, 202327,940,074 36,964,286 $9.00 
Warrants outstanding from Warrant Amendment Agreements, expiring September 22, 20269,024,212 — $1.55 
Warrants outstanding from Purchase Agreement, expiring September 22, 202633,170,747 — $1.55 
Pre-funded warrants outstanding, no expiration date20,965,747 — $0.001 
Total warrants and pre-funded warrants outstanding91,100,780 36,964,286