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Leases (Narrative) (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
May 10, 2020
Oct. 24, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 12, 2021
Lessee, Lease, Description [Line Items]          
Lease term 3 years 3 years      
Lease expiry date May 31, 2023 Oct. 31, 2024      
Lease term, option to extend three years three years      
Annual rent and management fees   $ 122      
Bank guarantees to property owner   $ 77      
Operating lease right-of-use assets     $ 227 $ 345  
Operating lease liabilities     214 343  
Operating Right Of Use Assets And Operating Lease Liabilities         $ 345
Increase in the carrying amount of the right-of-use asset due to impairment     $ 17 $ 345  
Incremental borrowing rate based on credit rating     5.00% 5.20%