Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) contracts	Jun. 30, 2019 USD ($) contracts	Jun. 30, 2020 USD ($) contracts	Jun. 30, 2019 USD ($) contracts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	82	139	164	235
Total Recorded Investment	$ 4,215,000	$ 5,244,000	$ 7,120,000	$ 9,182,000
Loan Modifications on Nonacrrual status	$ 43,000	$ 600,000	$ 300,000	$ 1,300,000
Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	1	1	1
Total Recorded Investment		$ 71,000	$ 10,000	$ 71,000
Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	3	11	7	16
Total Recorded Investment	$ 84,000	$ 2,444,000	$ 1,156,000	$ 2,900,000
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	1	1	1	1
Total Recorded Investment	$ 16,000	$ 36,000	$ 16,000	$ 36,000
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	13	6	19	14
Total Recorded Investment	$ 1,790,000	$ 374,000	$ 2,103,000	$ 673,000
Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	1	0
Total Recorded Investment			$ 14,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 140,000	$ 410,000	$ 262,000	$ 596,000
Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	2	5	5	8
Total Recorded Investment	$ 28,000	$ 166,000	$ 40,000	$ 236,000
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	1
Total Recorded Investment				$ 456,000
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	2	2	4	4
Total Recorded Investment	$ 1,643,000	$ 780,000	$ 2,844,000	$ 2,995,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	5	8	13	16
Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	56	105	113	174
Total Recorded Investment	$ 514,000	$ 963,000	$ 675,000	$ 1,219,000
Accruing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	1,146,000	2,397,000	2,579,000	3,092,000
Accruing [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	71,000	10,000	71,000
Accruing [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	82,000	1,802,000	82,000	1,801,000
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	868,000	0	980,000	54,000
Accruing [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	0	14,000	0
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	108,000	365,000	213,000	550,000
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	99,000	3,000	100,000
Accruing [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment				456,000
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			1,141,000
Accruing [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	88,000	60,000	136,000	60,000
Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	3,069,000	2,847,000	4,541,000	6,090,000
Nonaccrual [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	2,000	642,000	1,074,000	1,099,000
Nonaccrual [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	16,000	36,000	16,000	36,000
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	922,000	374,000	1,123,000	619,000
Nonaccrual [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	32,000	45,000	49,000	46,000
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	28,000	67,000	37,000	136,000
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	1,643,000	780,000	1,703,000	2,995,000
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 426,000	$ 903,000	$ 539,000	$ 1,159,000