Fair Value Of Financial Instruments - Qualitative Information About Level 3 Fair Value Measurements (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Impaired Loans [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Fair Value Estimate	$ 602,000	$ 801,000
Impaired Loans [Member] | Significant Unobservable Inputs (Level III) [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Fair Value Estimate	$ 602,000	$ 801,000
Impaired Loans [Member] | Minimum [Member] | Significant Unobservable Inputs (Level III) [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Range (Weighted Average)	0.00%	0.00%
Impaired Loans [Member] | Maximum [Member] | Significant Unobservable Inputs (Level III) [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Range (Weighted Average)	(27.30%)	(61.80%)
Impaired Loans [Member] | Weighted Average [Member] | Significant Unobservable Inputs (Level III) [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Range (Weighted Average)	(3.50%)	(5.80%)
Foreclosed Real Estate [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Fair Value Estimate	$ 1,703,000	$ 756,000
Foreclosed Real Estate [Member] | Significant Unobservable Inputs (Level III) [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Fair Value Estimate	$ 1,703,000	$ 756,000
Range (Weighted Average)	(7.00%)	(7.00%)
Foreclosed Real Estate [Member] | Weighted Average [Member] | Significant Unobservable Inputs (Level III) [Member]
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Range (Weighted Average)	(7.00%)	(7.00%)