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Segment Reporting (Narrative) (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
segment
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Segment Reporting Information [Line Items]          
Number of operating segments | segment     2    
Amortization of intangible assets     $ 248,000 $ 157,000  
Trust and Investment Services Segment [Member]          
Segment Reporting Information [Line Items]          
Amortization of intangible assets $ 52,000 $ 52,000 156,000 $ 156,000  
Operating Segments [Member] | Trust and Investment Services Segment [Member]          
Segment Reporting Information [Line Items]          
Nonfiduciary Assets 800,000   800,000   $ 900,000
Intangible assets $ 700,000   $ 700,000   $ 800,000