Loans (TDR Number Of Contracts Modified And Recorded Investment) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) contracts	Jun. 30, 2021 USD ($) contracts	Jun. 30, 2022 USD ($) contracts	Jun. 30, 2021 USD ($) contracts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	27	62	66	113
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 1,130,000	$ 3,796,000	$ 2,212,000	$ 5,125,000
Loan Modifications on Nonacrrual status	$ 0	$ 600,000	$ 600,000	$ 1,600,000
Number of Contracts | contracts	10	21	15	27
Recorded Investment	$ 195,000	$ 660,000	$ 261,000	$ 1,102,000
Construction Real Estate Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	3	1	3
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		$ 406,000	$ 106,000	$ 406,000
Number of Contracts | contracts	0	0	0	0
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	5	4	8	10
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 413,000	$ 253,000	$ 477,000	$ 493,000
Number of Contracts | contracts	2	5	2	6
Recorded Investment	$ 111,000	$ 334,000	$ 111,000	$ 373,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 25,000	$ 2,000	$ 78,000	$ 70,000
Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	1	4	2	4
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 30,000	$ 167,000	$ 50,000	$ 167,000
Number of Contracts | contracts	1	0	2	0
Recorded Investment	$ 20,000		$ 56,000
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	1	0	1
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		$ 98,000		$ 98,000
Number of Contracts | contracts	0	0	0	0
PPP loans receivable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Number of Contracts | contracts	0	0	0	0
Bank Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Number of Contracts | contracts	0	0	0	0
GFSC loans
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Number of Contracts | contracts	0	0	0	0
Check loans
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Number of Contracts | contracts	0	0	0	0
Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	1	0	1
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		$ 362,000		$ 362,000
Commercial Financial Agricultural less PPP and Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	3	2	4
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		$ 334,000		$ 334,000
Number of Contracts | contracts	0	0	0	0
Construction Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	1	3	5	8
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 488,000	$ 1,808,000	$ 1,217,000	$ 2,700,000
Number of Contracts | contracts	0	1	0	1
Recorded Investment		$ 220,000		$ 220,000
Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	1	0	2
Recorded Investment	$ 0	$ 6,000	$ 0	$ 34,000
Consumer less GFSC and Check Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	17	42	41	76
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 174,000	$ 366,000	$ 284,000	$ 495,000
Accruing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	877,000	1,970,000	1,502,000	2,195,000
Accruing [Member] | Construction Real Estate Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	0	0	0	0
Accruing [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 332,000	$ 58,000	$ 332,000	$ 193,000
Accruing [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	3	1	7	6
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 24,000	$ 2,000	$ 51,000	$ 42,000
Accruing [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	30,000	134,000	30,000	134,000
Accruing [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		98,000		98,000
Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	488,000	1,601,000	1,077,000	1,601,000
Accruing [Member] | Consumer less GFSC and Check Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	3,000	77,000	12,000	127,000
Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	253,000	1,826,000	710,000	2,930,000
Nonaccrual [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		406,000	106,000	406,000
Nonaccrual [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	81,000	195,000	145,000	300,000
Nonaccrual [Member] | Residential Real Estate Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	1,000		27,000	28,000
Nonaccrual [Member] | Residential Real Estate Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	0	33,000	20,000	33,000
Nonaccrual [Member] | Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		362,000		362,000
Nonaccrual [Member] | Commercial Financial Agricultural less PPP and Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		334,000		334,000
Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		207,000	140,000	1,099,000
Nonaccrual [Member] | Consumer less GFSC and Check Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 171,000	$ 289,000	$ 272,000	$ 368,000