Loans (Average Balance and Related Income of Loans Individually Evaluated for Impairment) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2019
With No Related Allowance Recorded:
Average Recorded Investment	$ 4,557	$ 5,001
Interest Income Recognized	13	32
Cash Basis Recognized	0	0
With An Allowance Recorded:
Average Recorded Investment	6,085	6,531
Interest Income Recognized	0	0
Cash Basis Recognized	0	0
Total Average Recorded Investment	10,642	11,532
Total Interest Income Recognized	13	32
Total Cash Basis Recognized	0	0
Acquired with Deteriorated Credit Quality
With No Related Allowance Recorded:
Average Recorded Investment	3,386	4,414
Interest Income Recognized	8	15
Cash Basis Recognized	0	0
With An Allowance Recorded:
Average Recorded Investment	744	3,861
Interest Income Recognized	0	0
Cash Basis Recognized	0	0
Commercial and Industrial Loans and Leases
With No Related Allowance Recorded:
Average Recorded Investment	164	301
Interest Income Recognized	2	4
Cash Basis Recognized	0	0
With An Allowance Recorded:
Average Recorded Investment	2,128	2,207
Interest Income Recognized	0	0
Cash Basis Recognized	0	0
Commercial Real Estate Loans
With No Related Allowance Recorded:
Average Recorded Investment	2,981	3,291
Interest Income Recognized	11	28
Cash Basis Recognized	0	0
With An Allowance Recorded:
Average Recorded Investment	3,957	4,324
Interest Income Recognized	0	0
Cash Basis Recognized	0	0
Agricultural Loans
With No Related Allowance Recorded:
Average Recorded Investment	1,412	1,409
Interest Income Recognized	0	0
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.

+ References

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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Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired.

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