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Loans and Allowance (Troubled Debts Restructured Defaulted) (Details) - Consumer [Member]
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
loan
Dec. 31, 2017
USD ($)
loan
Dec. 31, 2016
USD ($)
loan
First Mortgage [Member]      
Financing Receivable, Modifications [Line Items]      
No. of Loans | loan 1 1 5
Post-Modification Outstanding Recorded Balance | $ $ 48 $ 79 $ 179
Second Mortgage [Member]      
Financing Receivable, Modifications [Line Items]      
No. of Loans | loan 1    
Post-Modification Outstanding Recorded Balance | $ $ 5    
Boat/RVs [Member]      
Financing Receivable, Modifications [Line Items]      
No. of Loans | loan     1
Post-Modification Outstanding Recorded Balance | $     $ 7