Fair Values (Quantitative Information About Level 3 Fair Value Measurements) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		$ 1,538	$ 964
Other real estate owned, fair value		2,485	682
Residential Mortgage [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		964	115
Commercial Mortgage [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans			97
Commercial Term [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		79	90
Commercial Construction [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		358	559
Consumer: Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		137	103
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		1,538	964
Other real estate owned, fair value		2,485	682
Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans		1,538	964
Other real estate owned, fair value		$ 2,485	$ 682
Level 3 [Member] | Minimum [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Minimum [Member] | Residential Mortgage [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	0.00%	0.00%
Level 3 [Member] | Minimum [Member] | Residential Mortgage [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Minimum [Member] | Commercial Mortgage [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]		0.00%
Level 3 [Member] | Minimum [Member] | Commercial Mortgage [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]		(13.00%)
Level 3 [Member] | Minimum [Member] | Commercial Term [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(72.00%)	(72.00%)
Level 3 [Member] | Minimum [Member] | Commercial Term [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(11.00%)	(11.00%)
Level 3 [Member] | Minimum [Member] | Commercial Construction [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	0.00%	0.00%
Level 3 [Member] | Minimum [Member] | Commercial Construction [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Minimum [Member] | Consumer: Other [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	0.00%	0.00%
Level 3 [Member] | Minimum [Member] | Consumer: Other [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Maximum [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Maximum [Member] | Residential Mortgage [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(25.00%)	0.00%
Level 3 [Member] | Maximum [Member] | Residential Mortgage [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(12.00%)	(8.00%)
Level 3 [Member] | Maximum [Member] | Commercial Mortgage [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]		0.00%
Level 3 [Member] | Maximum [Member] | Commercial Mortgage [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]		(13.00%)
Level 3 [Member] | Maximum [Member] | Commercial Term [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(72.00%)	(72.00%)
Level 3 [Member] | Maximum [Member] | Commercial Term [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(11.00%)	(11.00%)
Level 3 [Member] | Maximum [Member] | Commercial Construction [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	0.00%	0.00%
Level 3 [Member] | Maximum [Member] | Commercial Construction [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Maximum [Member] | Consumer: Other [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	0.00%	0.00%
Level 3 [Member] | Maximum [Member] | Consumer: Other [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Weighted Average [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Weighted Average [Member] | Residential Mortgage [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(22.00%)	0.00%
Level 3 [Member] | Weighted Average [Member] | Residential Mortgage [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(9.00%)	(8.00%)
Level 3 [Member] | Weighted Average [Member] | Commercial Mortgage [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]		0.00%
Level 3 [Member] | Weighted Average [Member] | Commercial Mortgage [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]		(13.00%)
Level 3 [Member] | Weighted Average [Member] | Commercial Term [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(72.00%)	(72.00%)
Level 3 [Member] | Weighted Average [Member] | Commercial Term [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(11.00%)	(11.00%)
Level 3 [Member] | Weighted Average [Member] | Commercial Construction [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	0.00%	0.00%
Level 3 [Member] | Weighted Average [Member] | Commercial Construction [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)
Level 3 [Member] | Weighted Average [Member] | Consumer: Other [Member] | Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	0.00%	0.00%
Level 3 [Member] | Weighted Average [Member] | Consumer: Other [Member] | Disposal Costs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[1],[2]	(8.00%)	(8.00%)

[1] Appraisals are adjusted by management for qualitative factors and disposal costs.

[2] Fair value is generally determined through independent appraisals or sales contracts of the underlying collateral, which generally include various level 3 inputs which are not identifiable.