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Stock-Based compensation - Stock-Based Compensation Expense (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense		$ 584	$ 115	$ 1,165	$ 361
Unrecognized compensation expense		$ 6,200		$ 6,200
Weighted average period				1 year 4 months 24 days
2021 Incentive Award Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Term of awards	10 years
Number of shares authorized	4,200,000
Threshold annual increase in shares available for issuance expressed as a percentage	5.00%
Maximum number of shares issuable upon exercise of stock option	33,900,000
Shares avaliable for issuance		4,187,990		4,187,990
2021 Employee Stock Purchase Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Term of awards	10 years
Number of shares authorized	400,000
Threshold annual increase in shares available for issuance expressed as a percentage	1.00%
Maximum number of shares issuable upon exercise of stock option	6,300,000
Offering Period				$ 0
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense		$ 106	20	$ 221	62
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense		345	72	680	223
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense		76	11	158	42
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense		$ 57	$ 12	$ 106	$ 34

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- Definition

Maximum number of shares issuable upon exercise of stock option under the share based payment arrangement plan.

+ References

No definition available.

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The threshold annual increase in shares available for issuance expressed as a percentage of aggregate number of common stock shares under the share based payment arrangement plan.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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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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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Per share or unit weighted-average intrinsic value of award granted under share-based payment arrangement. Excludes share and unit options.

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Number of shares authorized for issuance under share-based payment arrangement.

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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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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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