Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) contracts	Sep. 30, 2018 USD ($) contracts	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Additional Specific Reserves Related To Troubled Debt Restructuring	$ 0	$ 150,000	$ 1,000	$ 160,000
Troubled Debt Restructuring, Classification removed	$ 15,000	$ 200,000	$ 38,000	$ 2,400,000
Number of Contracts	107	106	342	289
Total Recorded Investment	$ 7,866,000	$ 3,704,000	$ 16,229,000	$ 6,566,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 900,000	$ 1,100,000	$ 1,200,000	$ 1,300,000
Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	0	0	1	0
Total Recorded Investment			$ 0	$ 0
Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	8	8	24	16
Total Recorded Investment	$ 5,754,000	$ 574,000	$ 9,296,000	$ 800,000
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	1	2	2	2
Total Recorded Investment	$ 13,000	$ 304,000	$ 49,000	$ 304,000
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	4	4	18	17
Total Recorded Investment	$ 501,000	$ 246,000	$ 1,013,000	$ 1,062,000
Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	0	0	0	2
Total Recorded Investment			$ 0	$ 12,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 421,000	$ 336,000	$ 1,003,000	$ 453,000
Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	6	10	14	18
Total Recorded Investment	$ 138,000	$ 469,000	$ 364,000	$ 860,000
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	1	0	2	1
Total Recorded Investment	$ 82,000		$ 82,000	$ 0
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	1	3	5	10
Total Recorded Investment	$ 241,000	$ 1,154,000	$ 3,236,000	$ 1,859,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	9	8	25	17
Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts	77	71	251	206
Total Recorded Investment	$ 716,000	$ 621,000	$ 1,186,000	$ 1,216,000
Accruing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	1,745,000	897,000	4,943,000	2,043,000
Accruing [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	0	0	0
Accruing [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	752,000	22,000	3,237,000	208,000
Accruing [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	13,000	55,000	13,000	55,000
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	286,000	0	340,000	90,000
Accruing [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	0	0	12,000
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	407,000	336,000	951,000	437,000
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	31,000	453,000	121,000	735,000
Accruing [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	82,000		82,000	0
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			0	447,000
Accruing [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	174,000	31,000	199,000	59,000
Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	6,121,000	2,807,000	11,286,000	4,523,000
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	5,002,000	552,000	6,059,000	592,000
Nonaccrual [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment		249,000	36,000	249,000
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	215,000	246,000	673,000	972,000
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	14,000		52,000	16,000
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	107,000	16,000	243,000	125,000
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	241,000	1,154,000	3,236,000	1,412,000
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	542,000	590,000	987,000	1,157,000
Commercial Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 400,000	$ 0	$ 600,000	$ 200,000