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Note 7 - Loans - Outstanding Loans by Risk Rating (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable, Gross, Total	$ 1,167,473	$ 1,182,222
Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	305	441
Residential Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	581,626	586,580
Residential Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	77	77
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans and Leases Receivable, Gross, Total	508,387	510,641
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	77	77
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans and Leases Receivable, Gross, Total	27,028	27,503
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans and Leases Receivable, Gross, Total	32,090	33,638
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	14,121	14,798
Residential Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	569,331	578,901
Commercial Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	228	364
Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans and Leases Receivable, Gross, Total	295,860	301,227
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	228	364
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	33,340	33,555
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans and Leases Receivable, Gross, Total	132,308	126,374
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans and Leases Receivable, Gross, Total	43,613	53,570
Commercial Portfolio Segment [Member] | Political Subdivisions [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans and Leases Receivable, Gross, Total	11,524	12,251
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans and Leases Receivable, Gross, Total	32,370	31,070
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans and Leases Receivable, Gross, Total	3,886	4,319
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans and Leases Receivable, Gross, Total	16,430	16,535
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	16,516	16,741
Consumer Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Loans and Leases Receivable, Gross, Total	0	0
Pass [Member]
Loans and Leases Receivable, Gross, Total	1,124,543	1,143,535
Pass [Member] | Residential Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	570,904	575,884
Pass [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans and Leases Receivable, Gross, Total	498,803	500,963
Pass [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans and Leases Receivable, Gross, Total	26,367	26,953
Pass [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans and Leases Receivable, Gross, Total	31,613	33,170
Pass [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	14,121	14,798
Pass [Member] | Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	537,206	550,931
Pass [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans and Leases Receivable, Gross, Total	287,783	294,397
Pass [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	32,016	32,224
Pass [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans and Leases Receivable, Gross, Total	117,424	114,293
Pass [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans and Leases Receivable, Gross, Total	43,613	53,570
Pass [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans and Leases Receivable, Gross, Total	5,569	6,528
Pass [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans and Leases Receivable, Gross, Total	31,465	30,160
Pass [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans and Leases Receivable, Gross, Total	2,956	3,343
Pass [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans and Leases Receivable, Gross, Total	16,380	16,416
Pass [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	16,433	16,720
Special Mention [Member]
Loans and Leases Receivable, Gross, Total	20,785	19,658
Special Mention [Member] | Residential Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	500	331
Special Mention [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans and Leases Receivable, Gross, Total	305	193
Special Mention [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans and Leases Receivable, Gross, Total	136	79
Special Mention [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans and Leases Receivable, Gross, Total	59	59
Special Mention [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Special Mention [Member] | Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	20,285	19,327
Special Mention [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans and Leases Receivable, Gross, Total	6,191	4,773
Special Mention [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Special Mention [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans and Leases Receivable, Gross, Total	8,728	9,538
Special Mention [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans and Leases Receivable, Gross, Total	0	0
Special Mention [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans and Leases Receivable, Gross, Total	5,062	4,681
Special Mention [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans and Leases Receivable, Gross, Total	0	0
Special Mention [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans and Leases Receivable, Gross, Total	304	335
Special Mention [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Special Mention [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	0	0
Substandard [Member]
Loans and Leases Receivable, Gross, Total	21,840	18,504
Substandard [Member] | Residential Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	10,145	10,204
Substandard [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans and Leases Receivable, Gross, Total	9,202	9,324
Substandard [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans and Leases Receivable, Gross, Total	525	471
Substandard [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans and Leases Receivable, Gross, Total	418	409
Substandard [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Substandard [Member] | Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	11,612	8,279
Substandard [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans and Leases Receivable, Gross, Total	1,658	1,693
Substandard [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	1,324	1,331
Substandard [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans and Leases Receivable, Gross, Total	6,156	2,543
Substandard [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans and Leases Receivable, Gross, Total	0	0
Substandard [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans and Leases Receivable, Gross, Total	893	1,042
Substandard [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans and Leases Receivable, Gross, Total	905	910
Substandard [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans and Leases Receivable, Gross, Total	626	641
Substandard [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans and Leases Receivable, Gross, Total	50	119
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	83	21
Doubtful [Member]
Loans and Leases Receivable, Gross, Total	0	84
Doubtful [Member] | Residential Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	0	84
Doubtful [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member]
Loans and Leases Receivable, Gross, Total	0	84
Doubtful [Member] | Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Real Estate Loan [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Political Subdivisions [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Agricultural Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Other Commercial Loans [Member]
Loans and Leases Receivable, Gross, Total	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Gross, Total	$ 0	$ 0

X

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

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