Leases - Components of Lease Expense and Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease expense	$ 220	$ 250	$ 448	$ 488
Finance lease expense:
Amortization of right-of-use assets	4	4	8	7
Interest on lease liabilities	3	3	6	6
Total finance lease expense	7	7	14	13
Short-term lease expense	79	61	203	134
Total lease expense	306	318	665	635
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used in operating leases	350	394	726	727
Operating cash flows from finance leases	10	43	20	53
Financing cash flows from finance leases	$ 3	$ 3	$ 6	$ 29