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Stock-Based Compensation - Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	May 11, 2022
Stock Options, Additional Disclosures
Granted (in shares)	5,995
Options, Outstanding, Aggregate Intrinsic Value		$ 364
Weighted average fair value per share of options granted	$ 12.43
2018 Plan
Stock Options, Additional Disclosures
Stock options outstanding				0
2019 Plan
Stock Options, Additional Disclosures
Number of shares authorized	15,938
Stock options
Stock Options, Additional Disclosures
Stock options outstanding	36,493	32,498	30,676
Outstanding, Number, Beginning Balance (in shares)	32,498	30,676
Granted (in shares)	5,995	22,555
Exercised (in shares)		(6,096)
Forfeited/Cancelled (in shares)	(2,000)	(14,637)
Outstanding, Number, Ending Balance (in shares)	36,493	32,498	30,676
Vested and expected to vest (in shares)	36,493
Options Exercisable (in share)	17,903
Outstanding, Weighted Average Exercise Price, Beginning Balance (in dollars per share)	$ 119.72	$ 108.32
Granted (in dollars per share)	17.83	67.80
Exercise price (in dollars per share)		17.90
Forfeited/Cancelled (in dollars per share)	181.20	57.89
Outstanding, Weighted Average Exercise Price, Ending Balance (in dollars per share)	99.62	$ 119.72	$ 108.32
Vested and expected to vest (in dollars per share)	99.62
Options Exercisable (in dollars per share)	$ 146.70
Options, Outstanding, Weighted Average Remaining Contractual Term (years)	8 years 6 months	9 years 3 months 18 days	8 years 6 months
Vested and expected to vest (years)	8 years 6 months
Options Exercisable (years)	8 years 1 month 6 days
Weighted average fair value per share of options granted	$ 12.43	$ 43.55
Minimum | Stock options
Stock Options, Additional Disclosures
Vesting period	1 year
Maximum | Stock options
Stock Options, Additional Disclosures
Expiration period	10 years
Vesting period	3 years

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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