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Note 7 - Loans Receivable and Credit Disclosures - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Allowance for credit loss	$ 18,004	$ 17,058	$ 16,952	$ 16,776
Construction Real Estate [Member]
Allowance for credit loss	503	482	453	408
Family Residential Real Estate 1-4 [Member]
Allowance for credit loss	3,850	3,890	3,309	3,333
Multifamily [Member]
Allowance for credit loss	2,152	2,188	2,537	2,542
Commercial Real Estate Portfolio Segment [Member]
Allowance for credit loss	4,940	4,932	5,494	5,236
Agriculture Real Estate [Member]
Allowance for credit loss	1,589	1,584	1,221	1,238
Commercial Portfolio Segment [Member]
Allowance for credit loss	2,886	1,759	1,913	1,955
Agriculture [Member]
Allowance for credit loss	1,674	1,805	1,588	1,607
Consumer and Other [Member]
Allowance for credit loss	410	418	$ 437	$ 457
Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	13,920	13,583
Real Estate [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0	62
Real Estate [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	554	696
Real Estate [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	942	947
Real Estate [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	11,406	10,785
Real Estate [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	415	420
Real Estate [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	398	460
Real Estate [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	205	213
Real Estate [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Equipment [Member]
Financing Receivable Individually Evaluated For Impairment	392	398
Equipment [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Equipment [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Equipment [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Equipment [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Equipment [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Equipment [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	392	398
Equipment [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Equipment [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Other [Member]
Financing Receivable Individually Evaluated For Impairment	1,933	765
Other [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Other [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Other [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Other [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Other [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0	0
Other [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	1,614	405
Other [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	317	357
Other [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	2	3
Collateral Pledged [Member]
Financing Receivable Individually Evaluated For Impairment	16,245	14,746
Allowance for credit loss	1,150	90
Collateral Pledged [Member] | Construction Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	0	62
Allowance for credit loss	0	0
Collateral Pledged [Member] | Family Residential Real Estate 1-4 [Member]
Financing Receivable Individually Evaluated For Impairment	554	696
Allowance for credit loss	0	40
Collateral Pledged [Member] | Multifamily [Member]
Financing Receivable Individually Evaluated For Impairment	942	947
Allowance for credit loss	0	0
Collateral Pledged [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	11,406	10,785
Allowance for credit loss	0	0
Collateral Pledged [Member] | Agriculture Real Estate [Member]
Financing Receivable Individually Evaluated For Impairment	415	420
Allowance for credit loss	0	0
Collateral Pledged [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Individually Evaluated For Impairment	2,404	1,263
Allowance for credit loss	1,150	50
Collateral Pledged [Member] | Agriculture [Member]
Financing Receivable Individually Evaluated For Impairment	522	570
Allowance for credit loss	0	0
Collateral Pledged [Member] | Consumer and Other [Member]
Financing Receivable Individually Evaluated For Impairment	2	3
Allowance for credit loss	$ 0	$ 0

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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