Leases - Components of Lease Expense and Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Operating lease expense	$ 228	$ 238
Finance lease expense:
Amortization of right-of-use assets	4	4
Interest on lease liabilities	3	3
Total finance lease expense	7	7
Short-term lease expense	124	69
Total lease expense	359	314
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used in operating leases	(375)	(372)
Operating cash flows from finance leases	(10)	(3)
Financing cash flows from finance leases	$ (3)	$ (14)