Employee benefit plan - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer contribution, percent	5.00%
Defined contribution plan,contributions by employer	$ 398	$ 254
401(k) defined contribution plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan,contributions by employer	$ 278	$ 82
Defined contribution plan, maximum annual contributions per employee, percent	100.00%