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Leases - Supplemental Cash Flows (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      
Operating cash outflows from operating leases $ 639 $ 137  
Operating cash outflows from finance leases 7 24  
Financing cash outflows from finance leases 175 277 $ 242
ROU assets obtained in exchange for new lease liabilities      
Operating leases 0 355  
Finance leases $ 0 $ 0