Loans (Recorded Investment In Financing Receivable Modified As TDR Within 12 Months) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) contracts	Sep. 30, 2021 USD ($) contracts	Sep. 30, 2022 USD ($) contracts	Sep. 30, 2021 USD ($) contracts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	18	21	27	26
Recorded Investment	$ 328,000	$ 551,000	$ 478,000	$ 1,002,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 300,000	$ 600,000	$ 500,000	$ 1,000,000
Financing Receivable, Modifications, Number of Contracts | contracts	43	45	109	158
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 1,906,000	$ 6,980,000	$ 3,878,000	$ 11,410,000
Commercial Financial Agricultural less PPP and Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	1	0	2	0
Recorded Investment	$ 3,000		$ 57,000
Financing Receivable, Modifications, Number of Contracts | contracts	4	5	6	9
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 738,000	$ 1,251,000	$ 738,000	$ 1,282,000
PPP loans receivable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Financing Receivable, Modifications, 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
Financing Receivable, Modifications, Number of Contracts | contracts	0	0	0	0
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	1	0	1	0
Recorded Investment	$ 103,000		$ 103,000
Financing Receivable, Modifications, Number of Contracts | contracts	1	2	2	5
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 146,000	$ 221,000	$ 250,000	$ 624,000
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	2	4	2	6
Recorded Investment	$ 110,000	$ 330,000	$ 110,000	$ 396,000
Financing Receivable, Modifications, Number of Contracts | contracts	3	3	11	13
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 665,000	$ 102,000	$ 1,092,000	$ 525,000
Residential Real Estate - HELOC [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	2	1	4	1
Recorded Investment	$ 9,000	$ 95,000	$ 64,000	$ 95,000
Financing Receivable, Modifications, Number of Contracts | contracts	1	1	3	5
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 10,000	$ 33,000	$ 29,000	$ 186,000
Residential Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Modifications, Number of Contracts | contracts	2	1	9	7
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 29,000	$ 55,000	$ 86,000	$ 120,000
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	0	0	0	1
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification				$ 98,000
Construction Real Estate Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Modifications, 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
Financing Receivable, Modifications, 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
Financing Receivable, Modifications, Number of Contracts | contracts	0	0	0	0
Consumer less GFSC and Check Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	12	15	18	16
Recorded Investment	$ 103,000	$ 122,000	$ 144,000	$ 128,000
Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Modifications, Number of Contracts | contracts	10	0	10	1
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 115,000		$ 115,000	$ 351,000
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	1	5	6	13
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 31,000	$ 5,053,000	$ 1,240,000	$ 7,708,000
Residential Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	1	0	2
Recorded Investment	$ 0	$ 4,000	$ 0	$ 32,000
Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0	0	1
Recorded Investment	$ 0	$ 0	$ 0	$ 351,000
Accruing Financing Receivable Modifications [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans modified during period	6,000	29,000	10,000	29,000
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	952,000	582,000	2,394,000	2,606,000
Accruing Financing Receivable Modifications [Member] | Commercial Financial Agricultural less PPP and Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	227,000	383,000	227,000	383,000
Accruing Financing Receivable Modifications [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	146,000	96,000	146,000	96,000
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	545,000	0	870,000	148,000
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	0	33,000	0	80,000
Accruing Financing Receivable Modifications [Member] | Residential Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		55,000	48,000	93,000
Accruing Financing Receivable Modifications [Member] | Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification				98,000
Accruing Financing Receivable Modifications [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 Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	31,000		1,090,000	1,571,000
Nonaccruing Financing Receivable Modifications [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans modified during period	300,000	500,000	500,000	1,000,000
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	954,000	6,398,000	1,484,000	8,804,000
Nonaccruing Financing Receivable Modifications [Member] | Commercial Financial Agricultural less PPP and Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	511,000	868,000	511,000	899,000
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		125,000	104,000	528,000
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	120,000	102,000	222,000	377,000
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - HELOC [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	10,000	0	29,000	106,000
Nonaccruing Financing Receivable Modifications [Member] | Residential Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	29,000		38,000	27,000
Nonaccruing Financing Receivable Modifications [Member] | Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 115,000		115,000	351,000
Nonaccruing Financing Receivable Modifications [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification		$ 5,053,000	$ 150,000	$ 6,137,000