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Basis Of Presentation (Narrative) (Details)
Jan. 01, 2020
USD ($)
Jun. 30, 2020
USD ($)
item
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Allowance for credit losses on loans   $ 34,051,000 $ 34,105,000 $ 29,289,000 $ 29,768,000 $ 30,199,000 $ 30,838,000
Allowance for credit losses on off-balance sheet credit exposures       175,000      
Retained earnings   $ (283,379,000)   (274,376,000)      
Bank [Member]              
Number of subsidiaries | item   2          
As Reported [Member]              
Allowance for credit losses on loans $ 32,177,000     $ 2,888,000      
Allowance for credit losses on off-balance sheet credit exposures 605,000            
Impact Of Adopting ASU 2016-13 [Member]              
Allowance for credit losses on loans 2,888,000            
Allowance for credit losses on off-balance sheet credit exposures 430,000            
Impact Of Adopting ASU 2016-13 [Member] | Revision of Prior Period, Adjustment [Member]              
Retained earnings 2,325,000            
Impact Of Adopting ASU 2016-13 [Member] | Retained Earnings [Member]              
Deferred tax impact $ 993,000