Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) contracts	Sep. 30, 2019 USD ($) contracts	Sep. 30, 2020 USD ($) contracts	Sep. 30, 2019 USD ($) contracts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	80	107	244	342
Total Recorded Investment	$ 1,506	$ 7,866	$ 7,390	$ 16,229
Loan Modifications on Nonacrrual status	$ 100	$ 600	$ 400	$ 1,800
Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	1	1
Total Recorded Investment			$ 10
Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	3	8	10	24
Total Recorded Investment	$ 152	$ 5,754	$ 1,227	$ 9,296
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	1	1	2
Total Recorded Investment		$ 13	$ 8	$ 49
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	5	4	24	18
Total Recorded Investment	$ 367	$ 501	$ 1,740	$ 1,013
Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	1	0
Total Recorded Investment			$ 14
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 19	$ 421	$ 254	$ 1,003
Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	1	6	6	14
Total Recorded Investment	$ 21	$ 138	$ 43	$ 364
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	1	0	2
Total Recorded Investment		$ 82		$ 82
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	4	1	8	5
Total Recorded Investment	$ 359	$ 241	$ 3,204	$ 3,236
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	3	9	16	25
Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	64	77	177	251
Total Recorded Investment	$ 588	$ 716	$ 890	$ 1,186
Accruing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	435	1,745	2,449	4,943
Accruing [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	0	10	0
Accruing [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	35	752	117	3,237
Accruing [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment		13		13
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	258	286	735	340
Accruing [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	0	0	0
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	12	407	191	951
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	21	31	25	121
Accruing [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment		82		82
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			1,136
Accruing [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	109	174	235	199
Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	1,071	6,121	4,941	11,286
Nonaccrual [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	117	5,002	1,110	6,059
Nonaccrual [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			8	36
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	109	215	1,005	673
Nonaccrual [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment			14
Nonaccrual [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	7	14	63	52
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	0	107	18	243
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	359	241	2,068	3,236
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Total Recorded Investment	$ 479	$ 542	$ 655	$ 987