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Note 3 - Loans and Allowance for Loan Losses - Nonaccrual Loan by Loan Category (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Nonaccrual loans	$ 5,173	$ 6,707
Agricultural [Member]
Nonaccrual loans	348	348
Commercial and Industrial [Member]
Nonaccrual loans	1,699	1,802
Consumer Portfolio Segment [Member]
Nonaccrual loans	0	8
Commercial Real Estate Portfolio Segment [Member]
Nonaccrual loans	1,850	3,088
Construction Real Estate [Member]
Nonaccrual loans	0	80
Residential Portfolio Segment [Member]
Nonaccrual loans	$ 1,276	$ 1,381

X

- Definition

Amount of financing receivable on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447

+ Details

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X

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- Details

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- Details

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