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Leases - Supplemental Balance Sheet Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Leases    
Operating lease right-of-use assets $ 1,383 $ 1,537
Operating lease liabilities:    
Current portion of operating lease liabilities, included in accrued liabilities 618 623
Operating lease liabilities, net of current portion 871 1,026
Total operating lease liabilities $ 1,489 $ 1,649
Weighted average remaining lease term for operating leases (in years) 2 years 5 months 1 day 2 years 7 months 20 days
Weighted average discount rate for operating leases 5.89% 5.87%