Stock-Based Compensation - Schedule Options to Purchase Common Stock (Details) - 2019 Plan - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Number of Shares
Options outstanding, beginning balance (in shares)	731,189
Granted (in shares)	4,082,950
Forfeited (in shares)	(589,706)
Options outstanding, ending balance (in shares)	4,224,433	731,189
Options exercisable (in shares)	512,288
Weighted Average Exercise Price
Options outstanding, beginning balance (in USD per share)	$ 4.59
Granted (in USD per share)	0.41
Forfeited (in USD per share)	2.55
Options outstanding, ending balance (in USD per share)	0.84	$ 4.59
Options exercisable (in USD per share)	$ 3.48
Weighted Average Remaining Contractual Life (Years)
Options outstanding (in years)	8 years 10 months 24 days	8 years
Options exercisable (in years)	6 years 9 months 18 days
Aggregate Intrinsic Value
Options outstanding, beginning balance	$ 24,028
Options outstanding, ending balance	5,496,219	$ 24,028
Options exercisable	$ 286,223