Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($) contracts	Jun. 30, 2018 USD ($) contracts	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Additional Specific Reserves Related To Troubled Debt Restructuring		$ 0	$ 1,000	$ 10,000
Troubled Debt Restructuring, Classification removed	$ 0	$ 1,900,000	$ 23,000	$ 2,200,000
Number of Contracts	139	108	235	182
Total Recorded Investment	$ 5,244,000	$ 2,374,000	$ 9,182,000	$ 3,767,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 1,200,000	$ 1,200,000	$ 1,400,000	$ 1,400,000
Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	1	0	1	0
Total Recorded Investment	$ 71,000		$ 71,000	$ 0
Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	11	4	16	8
Total Recorded Investment	$ 2,444,000	$ 149,000	$ 2,900,000	$ 193,000
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	1	0	1	0
Total Recorded Investment	$ 36,000		$ 36,000	$ 0
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	6	4	14	13
Total Recorded Investment	$ 374,000	$ 317,000	$ 673,000	$ 961,000
Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	0	2	0	2
Total Recorded Investment		$ 14,000	$ 0	$ 14,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 410,000	$ 75,000	$ 596,000	$ 121,000
Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	5	6	8	8
Total Recorded Investment	$ 166,000	$ 452,000	$ 236,000	$ 791,000
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	0	0	1	1
Total Recorded Investment			$ 456,000	$ 0
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	2	3	4	6
Total Recorded Investment	$ 780,000	$ 589,000	$ 2,995,000	$ 720,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	8	4	16	9
Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	105	85	174	135
Total Recorded Investment	$ 963,000	$ 778,000	$ 1,219,000	$ 967,000
Accruing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	2,397,000	1,223,000	3,092,000	1,511,000
Accruing [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	71,000	0	71,000	0
Accruing [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	1,802,000	123,000	1,801,000	123,000
Accruing [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			0	0
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	93,000	54,000	93,000
Accruing [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	14,000	0	14,000
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	365,000	71,000	550,000	104,000
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	99,000	409,000	100,000	661,000
Accruing [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			456,000	0
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment		455,000	0	455,000
Accruing [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	60,000	58,000	60,000	61,000
Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	2,847,000	1,151,000	6,090,000	2,256,000
Nonaccrual [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			0	0
Nonaccrual [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	642,000	26,000	1,099,000	70,000
Nonaccrual [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	36,000		36,000	0
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	374,000	224,000	619,000	868,000
Nonaccrual [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			0	0
Nonaccrual [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	45,000	4,000	46,000	17,000
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	67,000	43,000	136,000	130,000
Nonaccrual [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			0	0
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	780,000	134,000	2,995,000	265,000
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 903,000	720,000	$ 1,159,000	906,000
Commercial Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment		$ 100,000		$ 200,000