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Commitments, Contingencies and Derivatives (Interest rate locks) (Details) - Interest Rate Lock Commitments [Member] - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Other Commitments [Line Items]    
Notional Amount $ 12,077 $ 21,746
Derivative, Fair Value, Net 67 285
Derivative Liability, Fair Value, Gross Liability (28) (22)
Derivative Asset, Fair Value, Gross Asset 95 307
Other Liabilities [Member]    
Other Commitments [Line Items]    
Notional Amount 3,838 1,860
Other Assets [Member]    
Other Commitments [Line Items]    
Notional Amount $ 8,239 $ 19,886