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Note 7 - Loans Receivable and Credit Disclosures - Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Loans receivable	$ 1,312,873	$ 1,294,178
Financing receivable, recorded investment, 90 days past due and still accruing	0
Collateral Pledged [Member]
Loans receivable		1,294,178
Financing receivable, recorded investment, 90 days past due and still accruing		109
Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	4,384
Financing Receivables 30 to 89 Days Past Due [Member] | Collateral Pledged [Member]
Loans receivable		2,242
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	5,395
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Collateral Pledged [Member]
Loans receivable		2,084
Financial Asset, Past Due [Member]
Loans receivable	9,779
Financial Asset, Past Due [Member] | Collateral Pledged [Member]
Loans receivable		4,326
Financial Asset, Not Past Due [Member]
Loans receivable	1,303,094
Financial Asset, Not Past Due [Member] | Collateral Pledged [Member]
Loans receivable		1,289,852
Construction Real Estate [Member]
Loans receivable	65,812	63,050
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Construction Real Estate [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	0	359
Construction Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	63	66
Construction Real Estate [Member] | Financial Asset, Past Due [Member]
Loans receivable	63	425
Construction Real Estate [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	65,749	62,625
Family Residential Real Estate 1-4 [Member]
Loans receivable	297,331	289,404
Financing receivable, recorded investment, 90 days past due and still accruing	0	3
Family Residential Real Estate 1-4 [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	1,803	1,020
Family Residential Real Estate 1-4 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	69	302
Family Residential Real Estate 1-4 [Member] | Financial Asset, Past Due [Member]
Loans receivable	1,872	1,322
Family Residential Real Estate 1-4 [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	295,459	288,082
Multifamily [Member]
Loans receivable	201,888	195,536
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Multifamily [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	0	0
Multifamily [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	1,232	983
Multifamily [Member] | Financial Asset, Past Due [Member]
Loans receivable	1,232	983
Multifamily [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	200,656	194,553
Commercial Real Estate Portfolio Segment [Member]
Loans receivable	355,073	359,266
Financing receivable, recorded investment, 90 days past due and still accruing	0	106
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	1,322	119
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	2,872	106
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans receivable	4,194	225
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	350,879	359,041
Agriculture Real Estate [Member]
Loans receivable	157,914	161,517
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Agriculture Real Estate [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	40	0
Agriculture Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	658	0
Agriculture Real Estate [Member] | Financial Asset, Past Due [Member]
Loans receivable	698	0
Agriculture Real Estate [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	157,216	161,517
Commercial Portfolio Segment [Member]
Loans receivable	93,534	89,729
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Commercial Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	1,107	559
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	440	98
Commercial Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans receivable	1,547	657
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	91,987	89,072
Agriculture [Member]
Loans receivable	124,207	119,136
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Agriculture [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	103	169
Agriculture [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	56	529
Agriculture [Member] | Financial Asset, Past Due [Member]
Loans receivable	159	698
Agriculture [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	124,048	118,438
Consumer and Other [Member]
Loans receivable	17,114	16,540
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Consumer and Other [Member] | Financing Receivables 30 to 89 Days Past Due [Member]
Loans receivable	9	16
Consumer and Other [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans receivable	5	0
Consumer and Other [Member] | Financial Asset, Past Due [Member]
Loans receivable	14	16
Consumer and Other [Member] | Financial Asset, Not Past Due [Member]
Loans receivable	$ 17,100	$ 16,524

X

- Definition

Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 45
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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