Prepaid and other current assets - Schedule of Prepaid and other current assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Prepaid Expense and Other Assets, Current [Abstract]
Vendor deposits	$ 5,328	$ 5,085
Prepaid expense	2,703	3,544
Prepaid taxes	181	163
Deferred cost of revenue	33	0
Surety collateral	102	107
Other current assets	1,140	1,405
Total	$ 9,487	$ 10,304