Commitments, Contingencies and Derivatives (Forward Contracts) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Notional Amount	$ 21,746	$ 15,249
Derivative Asset, Fair Value, Gross Asset	307	202
Derivative Liability, Fair Value, Gross Liability	(22)	(15)
Derivative, Fair Value, Net	285	187
Interest Rate Lock Commitments [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional Amount	19,886	12,310
Interest Rate Lock Commitments [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional Amount	1,860	2,939
Forward Contracts [Member]
Other Commitments [Line Items]
Notional Amount	8,065	15,125
Derivative Asset, Fair Value, Gross Asset	158	587
Derivative Liability, Fair Value, Gross Liability	(16)	(309)
Derivative, Fair Value, Net	142	278
Forward Contracts [Member] | Other Assets [Member]
Other Commitments [Line Items]
Notional Amount	6,692	14,250
Forward Contracts [Member] | Other Liabilities [Member]
Other Commitments [Line Items]
Notional Amount	$ 1,373	$ 875