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Goodwill and Other Intangible Assets (Changes in Gross Carrying Amount Accumulated Amortization and Net Book Value) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Goodwill [Line Items]    
Net book value $ 8,861 $ 10,111
Core Deposits [Member]    
Goodwill [Line Items]    
Gross carrying amount 2,042 2,042
Accumulated amortization (1,944) (1,829)
Net book value 98 213
Other Intangible Assets [Member]    
Goodwill [Line Items]    
Gross carrying amount 13,883 13,883
Accumulated amortization (5,120) (3,985)
Net book value $ 8,763 $ 9,898