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Note 1 - Nature of Banking Activities and Significant Accounting Policies - Impact of Adoption of New ASU (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Dec. 31, 2021
Held-to-Maturity, Allowance for Credit Loss	$ 107		$ 0
Allowance for Credit Loss	11,974	$ 7,446	7,446	$ 5,710
Allowance for credit losses for unfunded commitments		0
Real Estate 1 [Member] | Construction and Land Development [Member]
Allowance for Credit Loss	312	546	546	345
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Allowance for Credit Loss	3,159	1,108	1,108	1,077
Real Estate 1 [Member] | Other Real Estate Loans [Member]
Allowance for Credit Loss	4,698	3,609	3,609	3,230
Commercial and Industrial Loans [Member]
Allowance for Credit Loss	3,706	1,874	1,874	718
Consumer and Other Loans [Member]
Allowance for Credit Loss	99	309	309	$ 340
Accounting Standards Update 2016-13 [Member]
Held-to-Maturity, Allowance for Credit Loss		134	0
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for Credit Loss		9,632
Allowance for credit losses for unfunded commitments		153
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Real Estate 1 [Member] | Construction and Land Development [Member]
Allowance for Credit Loss		233
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Allowance for Credit Loss		2,517
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Real Estate 1 [Member] | Other Real Estate Loans [Member]
Allowance for Credit Loss		5,311
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Commercial and Industrial Loans [Member]
Allowance for Credit Loss		1,487
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Consumer and Other Loans [Member]
Allowance for Credit Loss		84
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Held-to-Maturity, Allowance for Credit Loss		134	134
Allowance for Credit Loss		2,186	2,186
Allowance for credit losses for unfunded commitments		153
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Real Estate 1 [Member] | Construction and Land Development [Member]
Allowance for Credit Loss		(313)	(313)
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Allowance for Credit Loss		1,409	1,409
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Real Estate 1 [Member] | Other Real Estate Loans [Member]
Allowance for Credit Loss		1,702	1,702
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Commercial and Industrial Loans [Member]
Allowance for Credit Loss		(387)	(387)
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Consumer and Other Loans [Member]
Allowance for Credit Loss		(225)	(225)
Corporate Debt Securities [Member]
Held-to-Maturity, Allowance for Credit Loss	$ 107	0	0
Corporate Debt Securities [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Held-to-Maturity, Allowance for Credit Loss		134
Corporate Debt Securities [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Held-to-Maturity, Allowance for Credit Loss		$ 134	$ 134

X

- Definition

Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

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

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+ References

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