Loans - Loans Receivable, Impaired, Interest Income, Cash Basis Method (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	$ 37,745	$ 40,546
Interest Income Recognized	404	1,595
Cash Basis Income Recognized	346	1,321
Residential Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	5,251	5,005
Interest Income Recognized	50	138
Cash Basis Income Recognized	50	131
Residential Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	2,113	2,078
Interest Income Recognized	28	106
Cash Basis Income Recognized	27	106
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	7,364	7,083
Interest Income Recognized	78	244
Cash Basis Income Recognized	77	237
Commercial Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	6,367	7,082
Interest Income Recognized	45	268
Cash Basis Income Recognized	45	222
Commercial Real Estate Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	1,898	1,943
Interest Income Recognized	19	70
Cash Basis Income Recognized	19	63
Multi-Family Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	175	604
Interest Income Recognized	5	32
Cash Basis Income Recognized	5	32
Agriculture Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	12,981	13,206
Interest Income Recognized	168	544
Cash Basis Income Recognized	114	405
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	21,900	23,645
Interest Income Recognized	250	980
Cash Basis Income Recognized	194	783
Commercial Working Capital [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	6,224	7,302
Interest Income Recognized	55	281
Cash Basis Income Recognized	55	217
Commercial Loans Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	1,372	1,597
Interest Income Recognized	15	63
Cash Basis Income Recognized	14	59
Home Equity and Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	868	893
Interest Income Recognized	6	26
Cash Basis Income Recognized	6	24
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	7,596	8,899
Interest Income Recognized	70	344
Cash Basis Income Recognized	69	276
Consumer Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	17	26
Interest Income Recognized		1
Cash Basis Income Recognized		1
Commercial Real Estate Other Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Balance	479	810
Interest Income Recognized	13	66
Cash Basis Income Recognized	$ 11	$ 61