Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 4,854	$ 3,323
Value added, goods and service taxes receivable	2,019	1,384
Guarantee deposits placed	2,004	2,295
Other prepaid and current assets	312	1,152
Total prepaid expenses and other current assets	$ 9,189	$ 8,154