Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Cash flows from operating activities - operating leases	$ 768	$ 745
Cash flows from operating activities - finance leases	758	820
Cash flows from financing activities - finance leases	$ 1,339	$ 1,225	$ 1,115