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Income Taxes (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Apr. 29, 2018
Federal statutory income tax rate 21.00% 21.00%  
Federal tax credits related to investment in two low income housing $ 902,000 $ 901,000  
Income tax examination, year under examination 2016 2017 2018    
Adjustments to unrecognized tax benefits $ 0 $ 0  
Phase I [Member]      
Tax credit expiration date related to investment in two low income housing Dec. 31, 2023    
Phase II [Member]      
Tax credit expiration date related to investment in two low income housing Dec. 31, 2027    
Liverpool Community Bank [Member]      
Percentage of equity interest in acquiree, before acquisition     39.16%
Deferred tax liability related to previous 39.16% ownership in LCB     $ 406,000