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Note 7 - Loans Receivable and Credit Disclosures - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Nonaccrual Loans	$ 13,190	$ 13,794
Nonaccrual Loans, no allowance	12,972	13,570
Construction Real Estate [Member]
Nonaccrual Loans	62	66
Nonaccrual Loans, no allowance	62	66
Family Residential Real Estate 1-4 [Member]
Nonaccrual Loans	666	678
Nonaccrual Loans, no allowance	552	563
Multifamily [Member]
Nonaccrual Loans	2,020	2,034
Nonaccrual Loans, no allowance	2,020	2,034
Commercial Real Estate Portfolio Segment [Member]
Nonaccrual Loans	8,698	8,976
Nonaccrual Loans, no allowance	8,698	8,976
Agriculture Real Estate [Member]
Nonaccrual Loans	444	449
Nonaccrual Loans, no allowance	444	449
Commercial Portfolio Segment [Member]
Nonaccrual Loans	258	268
Nonaccrual Loans, no allowance	165	172
Agriculture [Member]
Nonaccrual Loans	1,024	1,310
Nonaccrual Loans, no allowance	1,024	1,310
Consumer and Other [Member]
Nonaccrual Loans	18	13
Nonaccrual Loans, no allowance	$ 7	$ 0

X

- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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