Segment and geographic information - Schedule of long-lived assets, net of accumulated depreciation and amortization (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	$ 14,018	$ 11,358
Poland
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	3,010	1,522
Serbia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	2,350	2,457
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	2,101	2,174
Ukraine
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	2,067	2,437
India
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	1,098	621
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Total	$ 3,392	$ 2,147