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Deposits (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Total Deposits $ 1,511,837 $ 1,429,629
Time deposits $250000 or more $ 86,600 $ 117,200
Number of customers with deposits exceeding threshold 2 1
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]    
Percentage concentration risk 2.00% 2.00%
Executive Officers And Directors [Member]    
Total Deposits $ 7,500 $ 7,900
One Customer With Deposits With Company [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member]    
Total Deposits $ 297,100 $ 158,800
Percentage of total deposits 19.60% 11.10%