Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid operating expenses	$ 3,320	$ 396
Prepaid insurance	1,544	2,338
Prepaid expenses	1,092	680
VAT receivable	979	945
Other current assets	4	1
Total	$ 6,939	$ 4,360