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Goodwill and Intangible Assets (Schedule of future amortization expense for amortizable intangible assets) (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Dec. 31, 2021
Goodwill and Intangible Assets      
2023 $ 21    
2024 79    
2025 60    
2026 29    
2027 21    
Thereafter 57    
Total $ 267 $ 334 $ 433