Loans (Average Balance and Related Income of Loans Individually Evaluated for Impairment) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019
With No Related Allowance Recorded:
Average Recorded Investment	$ 7,106	$ 5,702
Interest Income Recognized	54	84
Cash Basis Recognized	5	7
With An Allowance Recorded:
Average Recorded Investment	7,718	6,927
Interest Income Recognized	0	0
Cash Basis Recognized	3	0
Total Average Recorded Investment	14,824	12,629
Total Interest Income Recognized	54	84
Total Cash Basis Recognized	8	7
Acquired with Deteriorated Credit Quality
With No Related Allowance Recorded:
Average Recorded Investment	3,381	4,070
Interest Income Recognized	43	58
Cash Basis Recognized	0	0
With An Allowance Recorded:
Average Recorded Investment	815	2,083
Interest Income Recognized	0	0
Cash Basis Recognized	0	0
Commercial and Industrial Loans and Leases
With No Related Allowance Recorded:
Average Recorded Investment	2,868	1,157
Interest Income Recognized	8	11
Cash Basis Recognized	0	2
With An Allowance Recorded:
Average Recorded Investment	5,708	3,374
Interest Income Recognized	0	0
Cash Basis Recognized	0	0
Commercial Real Estate Loans
With No Related Allowance Recorded:
Average Recorded Investment	2,699	3,093
Interest Income Recognized	45	72
Cash Basis Recognized	5	5
With An Allowance Recorded:
Average Recorded Investment	2,010	3,553
Interest Income Recognized	0	0
Cash Basis Recognized	3	0
Agricultural Loans
With No Related Allowance Recorded:
Average Recorded Investment	1,539	1,452
Interest Income Recognized	1	1
Cash Basis Recognized	0	0
With An Allowance Recorded:
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Cash Basis Recognized	$ 0	$ 0

Impaired Financing Receivable, with No Related Allowance [Abstract]

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- Definition

Impaired Financing Receivable, with Related Allowance [Abstract]

+ References

No definition available.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524

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-Publisher FASB
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-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

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