Aggregate number of common shares reserved for future issuance.

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Amount of contributions made by employer into fund established for purposes of making future disbursement to individual in accordance with deferred compensation arrangement.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of shares issued under share-based payment arrangement.

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

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Aggregate number of common shares reserved increase (decrease).

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Equity Incentive Plans (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 $ / shares	May 31, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved				6,500,000
Increased the shares reserved				1,500,000
Exercise of stock options (in shares)	1,282,820
Cash contributions \| $	$ 353	$ 160
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved		6,500,000
Granted	2,760,684	6,275,456
Available for grant	224,544
Stock split ratio			1
Share price \| $ / shares			$ 0.05
Servicing period			10 years
2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved	14,041,107
Available for grant	12,553,112
Four Zero One K Savings Plan Part 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of employees' gross pay	3.00%
Defined contribution plan, employer matching contribution, percent of match	100.00%
Four Zero One K Savings Plan Part 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of employees' gross pay	2.00%
Defined contribution plan, employer matching contribution, percent of match	50.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Servicing period	10 years
Vesting period	4 years
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years