Stockholders' equity - Summary of Stock Option Activity (Details) - 2021 Stock incentive Plan - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2025	Dec. 31, 2024
Options Outstanding
Outstanding, beginning balance (in shares)	1,351,086
Granted (in shares)	0
Exercised (in shares)	(148,557)
Canceled (in shares)	(74,324)
Outstanding, ending balance (in shares)	1,128,205	1,351,086
Vested & expected to vest, awards outstanding (in shares)	1,128,205
Exercisable, awards outstanding (in shares)	1,127,592
Weighted Average Exercise Price
Outstanding, beginning balance (in USD per share)	$ 5.28
Granted (in USD per share)	0
Exercised (in USD per share)	3.92
Canceled (in USD per share)	6.86
Outstanding, ending balance (in USD per share)	5.35	$ 5.28
Vested & expected to vest, weighted average exercise price (in USD per shares)	5.35
Exercisable, weighted average exercise price (in USD per share)	$ 5.34
Outstanding, weighted average remaining contractual term	4 years 3 months 7 days	4 years 18 days
Outstanding, aggregate intrinsic value	$ 3,382	$ 4,666
Vested & expected to vest, weighted average remaining contractual term	4 years 3 months 7 days
Vested & expected to vest, aggregate intrinsic value	$ 3,382
Exercisable, weighted average remaining contractual term	4 years 3 months 7 days
Exercisable, aggregate intrinsic value	$ 3,382

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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

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.