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Fixed Assets and Operating Leases - ROU and Lease Liability (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Operating Lease    
Right-of-use assets, net $ 453 $ 384
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, Plant and Equipment, Net Property, Plant and Equipment, Net
Lease Liabilities:    
Current lease liabilities $ 205 $ 169
Non-current lease liabilities 350 249
Total lease liabilities 555 418
Operating lease cost $ 257 $ 242
Weighted average remaining lease term (in years) 2 years 7 months 6 days  
Weighted average discount rate 5.80%