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Goodwill and Other Intangible Assets (Identifiable intangible assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Net Intangible Assets $ 169  
Core deposit premium resulting from acquisitions [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets 5,579 $ 5,579
Accumulated Amortization 5,410 5,314
Net Intangible Assets $ 169 $ 265