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Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) contracts	Jun. 30, 2016 USD ($) contracts	Jun. 30, 2017 USD ($) contracts	Jun. 30, 2016 USD ($) contracts
Financing Receivable, Recorded Investment [Line Items]
Additional Specific Reserves Related To Troubled Debt Restructuring	$ 10	$ 950	$ 290	$ 975
Troubled Debt Restructuring, Classification removed		$ 917	$ 0	$ 1,700
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	70	46	79	49
Number of Contracts | contracts	103	110	186	194
Total Recorded Investment	$ 3,036	$ 8,827	$ 7,569	$ 10,794
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 2,110	$ 1,747	$ 2,326	$ 1,775
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	1	0	1	0
Total Recorded Investment	$ 8		$ 8
Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	4	0	4	0
Number of Contracts | contracts	3	10	11	17
Total Recorded Investment	$ 164	$ 3,299	$ 3,052	$ 3,996
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 109		$ 109
Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	1	2	1	2
Number of Contracts | contracts	4	1	5	3
Total Recorded Investment	$ 282	$ 132	$ 282	$ 695
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 29	$ 563	$ 29	$ 563
Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	10	3	10	3
Number of Contracts | contracts	10	4	19	9
Total Recorded Investment	$ 944	$ 441	$ 1,548	$ 752
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 724	$ 288	$ 724	$ 288
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	0	1	0	1
Total Recorded Investment		$ 10	$ 0	$ 10
Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	$ 40	$ 42	$ 73	$ 42
Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	2	0	2	0
Number of Contracts | contracts	9	2	12	8
Total Recorded Investment	$ 208	$ 55	$ 406	$ 237
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 10		$ 10
Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Number of Contracts | contracts	0	1	0	1
Total Recorded Investment		$ 196	$ 0	$ 196
Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	48	39	56	42
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 579	$ 311	$ 618	$ 339
Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0	$ 0	$ 0
Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	4	1	5	1
Number of Contracts | contracts	2	4	6	4
Total Recorded Investment	$ 802	$ 3,907	$ 1,183	$ 3,908
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 657	$ 582	$ 834	$ 582
Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	1	1	1	1
Number of Contracts | contracts	2	2	3	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 2	$ 3	$ 2	$ 3
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Contracts | contracts	72	85	129	149
Total Recorded Investment	$ 588	$ 745	$ 1,017	$ 958
Finance Leases Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts, During Period | contracts	0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 0	$ 0	$ 0	$ 0
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	1,477	3,555	1,725	3,729
Accruing [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	0	0	0
Accruing [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment		51	0	51
Accruing [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment			0
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	438	0	438	98
Accruing [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	0	0	0	0
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	40	39	73	39
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	160	17	359	80
Accruing [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment			0
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	802	3,326	803	3,327
Accruing [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	37	122	52	134
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	1,559	5,272	5,844	7,065
Nonaccrual [Member] | Construction Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	8		8
Nonaccrual [Member] | Commercial Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	164	3,248	3,052	3,945
Nonaccrual [Member] | Residential Real Estate - Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	282	132	282	695
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	506	441	1,110	654
Nonaccrual [Member] | Construction Real Estate - Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment		10	0	10
Nonaccrual [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment		3	0	3
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	48	38	47	157
Nonaccrual [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment		196	0	196
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment		581	380	581
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Recorded Investment	$ 551	$ 623	$ 965	$ 824

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