Stockholders' Equity - Summary of Stock Option Activity (Details) - 2019 Plan - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Number of Options
Outstanding, Beginning Balance	2,406,668
Granted	956,816
Exercised	(12,065)
Cancelled	(199,145)
Outstanding, Ending Balance	3,152,274	2,406,668
Exercisable as of June 30, 2022	1,365,395
Weighted Average Exercise Price
Weighted Average Exercise Price Outstanding, Beginning Balance	$ 16.46
Weighted Average Exercise Price, Granted	4.19
Weighted Average Exercise Price, Exercised	2.43
Weighted Average Exercise Price, Cancelled	14.49
Weighted Average Exercise Price Outstanding, Ending Balance	12.92	$ 16.46
Weighted Average Exercise Price, Exercisable as of June 30, 2022	$ 13.14
Weighted Average Remaining Contractual Term (In years)
Weighted Average Remaining Contractual Term (In years), Outstanding	8 years 1 month 6 days	8 years 1 month 6 days
Weighted Average Remaining Contractual Term (In years), Exercisable as of June 30, 2022	7 years
Aggregate Intrinsic Value
Aggregate Intrinsic Value Outstanding	$ 9,970
Aggregate Intrinsic Value Outstanding	790	$ 9,970
Aggregate Intrinsic Value, Exercisable as of June 30, 2022	$ 642

Share based compensation arrangement by share based payment award options aggregate intrinsic value.

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Share based compensation arrangement by share based payment award options weighted average remaining contractual term.

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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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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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