Summary of Significant Accounting Policies - Warrant Weighted Average Assumptions (Details)	Dec. 31, 2021 $ / shares	Dec. 31, 2020 $ / shares	Jan. 21, 2020 $ / shares
Liability-Classified Warrants | Current stock price
Fair Value of Financial Instruments
Fair value measurement input			2.31
Liability-Classified Warrants | Estimated volatility of future stock price
Fair Value of Financial Instruments
Fair value measurement input			124
Liability-Classified Warrants | Risk free interest rate
Fair Value of Financial Instruments
Fair value measurement input			1.53
Liability-Classified Warrants | Expected term
Fair Value of Financial Instruments
Fair value measurement input			3.7
Warrant Liability Classified As Level 3 | Current stock price
Fair Value of Financial Instruments
Fair value measurement input	3.04	5.36
Warrant Liability Classified As Level 3 | Estimated volatility of future stock price
Fair Value of Financial Instruments
Fair value measurement input	133.13	141.28
Warrant Liability Classified As Level 3 | Risk free interest rate
Fair Value of Financial Instruments
Fair value measurement input	0.55	0.17
Warrant Liability Classified As Level 3 | Expected term
Fair Value of Financial Instruments
Fair value measurement input	1.90	2.90