Prepaid Expenses and Other Current Assets and Accrued and Other Current Liabilities - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid expenses	$ 2,256	$ 2,268
Restricted cash	1,180	238
Other current assets	574	998
Prepaid expenses and other current assets	$ 4,010	$ 3,504