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Loans and Allowance for Loan Losses (Troubled Debt Restructurings) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
contract
Dec. 31, 2017
contract
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract   0
Commercial Real Estate [Member]    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract 1  
Pre-Modification Outstanding Recorded Investment $ 62  
Post-Modification Outstanding Recorded Investment $ 62  
Commercial and Industrial [Member]    
Financing Receivable, Modifications [Line Items]    
Number of Contracts | contract 1  
Pre-Modification Outstanding Recorded Investment $ 18  
Post-Modification Outstanding Recorded Investment $ 18