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Note 6 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Other Real Estate Owned [Member]
Assets, Fair Value	$ 184	$ 1,848
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value	0	0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value	0	0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value	184	184
Collateral Dependent Loans [Member]
Assets, Fair Value	1,591
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value	0
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value	0
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value	$ 1,591
Impaired Loans [Member]
Assets, Fair Value		197
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value		0
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value		0
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value		$ 197

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

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- Details

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- Details

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