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Loans (Loans Individually Evaluated for Impairment by Class) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Dec. 31, 2019
With No Related Allowance Recorded:
Unpaid Principal Balance	[1]		$ 11,670
Recorded Investment			5,320
Average Recorded Investment		$ 5,444
Interest Income Recognized		21
Cash Basis Recognized		11
With An Allowance Recorded:
Unpaid Principal Balance	[1]		7,229
Recorded Investment			6,386
Allowance for Loan Losses Allocated			3,371
Average Recorded Investment		6,977
Interest Income Recognized		0
Cash Basis Recognized		0
Unpaid Principal Balance	[1]		18,899
Recorded Investment			11,706
Average Recorded Investment		12,421
Interest Income Recognized		21
Cash Basis Recognized		11
Acquired with Deteriorated Credit Quality
With No Related Allowance Recorded:
Unpaid Principal Balance	[1]		9,994
Recorded Investment			4,624
Average Recorded Investment		3,547
Interest Income Recognized		8
Cash Basis Recognized		0
With An Allowance Recorded:
Unpaid Principal Balance	[1]		1,134
Recorded Investment			813
Allowance for Loan Losses Allocated			400
Average Recorded Investment		762
Interest Income Recognized		0
Cash Basis Recognized		0
Commercial and Industrial Loans and Leases
With No Related Allowance Recorded:
Unpaid Principal Balance	[1]		3,638
Recorded Investment			524
Average Recorded Investment		438
Interest Income Recognized		2
Cash Basis Recognized		2
With An Allowance Recorded:
Unpaid Principal Balance	[1]		5,042
Recorded Investment			4,521
Allowance for Loan Losses Allocated			2,412
Average Recorded Investment		2,286
Interest Income Recognized		0
Cash Basis Recognized		0
Commercial Real Estate Loans
With No Related Allowance Recorded:
Unpaid Principal Balance	[1]		4,738
Recorded Investment			2,058
Average Recorded Investment		3,601
Interest Income Recognized		19
Cash Basis Recognized		9
With An Allowance Recorded:
Unpaid Principal Balance	[1]		2,187
Recorded Investment			1,865
Allowance for Loan Losses Allocated			959
Average Recorded Investment		4,691
Interest Income Recognized		0
Cash Basis Recognized		0
Agricultural Loans
With No Related Allowance Recorded:
Unpaid Principal Balance	[1]		3,294
Recorded Investment			2,738
Average Recorded Investment		1,405
Interest Income Recognized		0
Cash Basis Recognized		0
With An Allowance Recorded:
Unpaid Principal Balance	[1]		0
Recorded Investment			0
Allowance for Loan Losses Allocated			$ 0
Average Recorded Investment		0
Interest Income Recognized		0
Cash Basis Recognized		$ 0
[1] Total recorded investment in loans includes $13,929 in accrued interest.

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