Leases - Future Minimum Lease Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Operating Leases
2022	$ 602
2023	373
2024	28
2025	0
2026	0
After 2026	0
Total minimum lease payments	1,003
Less imputed interest	(51)
Net present value of minimum lease payments	952
Less current portion	(564)	$ (677)
Long-term lease obligations at December 31, 2021	388	941
Finance Leases
2022	2,149
2023	2,202
2024	2,258
2025	2,314
2026	2,372
After 2026	5,972
Total minimum lease payments	17,267
Less imputed interest	(2,966)
Net present value of minimum lease payments	14,301
Less current portion	(1,461)	(1,339)
Long-term lease obligations at December 31, 2021	$ 12,840	$ 14,301