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Loans (Recorded Investment In Financing Receivable Modified As TDR Within 12 Months) (Details)	3 Months Ended
	Mar. 31, 2022 USD ($) contracts	Mar. 31, 2021 USD ($) contracts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	22	36
Recorded Investment	$ 1,023,000	$ 1,034,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	$ 1,000,000	$ 1,000,000
Financing Receivable, Modifications, Number of Contracts | contracts	39	51
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 2,039,000	$ 2,606,000
Commercial Financial Agricultural less PPP and Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	2	1
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 752,000	$ 200,000
PPP loans receivable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	0	0
Bank Overdrafts
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	0	0
Residential Real Estate Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	1	0
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 107,000
Residential Real Estate - Mortgage [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	3	10
Recorded Investment	$ 194,000	$ 763,000
Financing Receivable, Modifications, Number of Contracts | contracts	3	6
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 81,000	$ 276,000
Residential Real Estate - HELOC [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	2	0
Recorded Investment	$ 58,000
Financing Receivable, Modifications, Number of Contracts | contracts	1	0
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 20,000	$ 0
Residential Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 55,000	$ 146,000
Construction Real Estate Commercial [Domain]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	0	0
Construction Real Estate Retail
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Modifications, Number of Contracts | contracts	0	0
GFSC loans
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	5
Recorded Investment		$ 25,000
Financing Receivable, Modifications, Number of Contracts | contracts	0	0
Check loans
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	0	0
Consumer less GFSC and Check Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	16	19
Recorded Investment	$ 128,000	$ 210,000
Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Modifications, Number of Contracts | contracts	0	0
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Financing Receivable, Modifications, Number of Contracts | contracts	4	5
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	$ 774,000	$ 1,625,000
Residential Real Estate - Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	2
Recorded Investment	$ 0	$ 36,000
Financing Receivable, Modifications, Number of Contracts | contracts	4	5
Finance Leases Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Contracts | contracts	0	0
Recorded Investment	$ 0	$ 0
Accruing Financing Receivable Modifications [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans modified during period	4,000	300,000
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	663,000	599,000
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	0	137,000
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	0
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	28,000	118,000
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
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	600,000	272,000
Nonaccruing Financing Receivable Modifications [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans modified during period	1,000,000	700,000
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	1,376,000	2,007,000
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	752,000	200,000
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	107,000
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	81,000	139,000
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	20,000	0
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	27,000	28,000
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	$ 174,000	$ 1,353,000

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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-Publisher FASB
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-Topic 310
-SubTopic 10
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-Paragraph 33
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-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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