Fair Value Measurements (Quantitative Information About Level 3 Fair Value Measurements) (Details) - (Level 3) Significant Unobservable Inputs [Member] - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2017	Dec. 31, 2016
Impaired Loans [Member] | Market Approach Valuation Technique [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	[1]	$ 786	$ 794
Impaired Loans [Member] | Market Approach Valuation Technique [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[2]	(25.00%)	(25.00%)
Impaired Loans [Member] | Market Approach Valuation Technique [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[2]	0.00%	0.00%
Impaired Loans [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[2]	(25.00%)	(24.80%)
Impaired Loans [Member] | Cost Approach Valuation Technique [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[3]	(7.50%)	(10.00%)
Impaired Loans [Member] | Cost Approach Valuation Technique [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[3]	0.00%	0.00%
Impaired Loans [Member] | Cost Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[3]	(7.50%)	(7.50%)
Other Real Estate Owned [Member] | Cost Approach Valuation Technique [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	[4]	$ 480	$ 480
Range (Weighted Average)	[3]	(5.00%)	(5.00%)
Other Real Estate Owned [Member] | Cost Approach Valuation Technique [Member] | Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range (Weighted Average)	[3]	(5.00%)	(5.00%)

[1] Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable.

[2] Appraisals may be adjusted by management for qualitative factors including economic conditions and the age of the appraisal. The range and weighted average of appraisal adjustments are presented as a percent of the appraisal.

[3] Appraisals and pending agreements of sale are adjusted by management for liquidation expenses. The range and weighted average of liquidation expense adjustments are presented as a percent of the appraisal or pending agreement of sale.

[4] Fair value is determined by listings, letters of intent or third-party evaluations.