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Note 9 - Fair Value Measurements - Schedule of Financial Assets on a Non-recurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Collateral Dependent Loans [Member]
Collateral dependent loans	$ 1,459	$ 1,130
Mortgage Servicing Rights [Member]
Collateral dependent loans	20,655	21,043
Fair Value, Inputs, Level 1 [Member] | Collateral Dependent Loans [Member]
Collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Mortgage Servicing Rights [Member]
Collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Collateral Dependent Loans [Member]
Collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Mortgage Servicing Rights [Member]
Collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Collateral Dependent Loans [Member]
Collateral dependent loans	1,459	1,130
Fair Value, Inputs, Level 3 [Member] | Mortgage Servicing Rights [Member]
Collateral dependent loans	$ 20,655	$ 21,043

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- Definition

Fair value portion of asset recognized for present right to economic benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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