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Goodwill and Intangibles (Details) - Summary of carrying basis and accumulated amortization of recognized intangible assets - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Core Deposits [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 4,698 $ 4,698
Accumulated Amortization (4,692) (4,688)
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 200 200
Accumulated Amortization (166) (162)
Banking Intangibles [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 4,898 4,898
Accumulated Amortization $ (4,858) $ (4,850)