Note 3 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

			Gross		Gross
			Unrealized		Unrealized			Fair
	Amortized Cost		Gains		Losses			Value
March 31, 2023
Obligations of the U.S. Treasury and U.S. government agencies and corporations	$	29,786	$	148	$	(526	)	$	29,408
Obligations of state and political subdivisions		19,967		15		(2,142	)		17,840
Corporate bonds		33,731		—		(3,251	)		30,480
Residential mortgage-backed securities		294,561		13		(42,887	)		251,687
Commercial mortgage-backed securities		84,287		274		(7,869	)		76,692
Total	$	462,332	$	450	$	(56,675	)	$	406,107

			Gross		Gross
			Unrealized		Unrealized			Fair
	Amortized Cost		Gains		Losses			Value
December 31, 2022
Obligations of the U.S. Treasury and U.S. government agencies and corporations	$	30,370	$	134	$	(699	)	$	29,805
Obligations of state and political subdivisions		21,098		7		(2,727	)		18,378
Corporate bonds		33,477		—		(3,535	)		29,942
Residential mortgage-backed securities		298,867		10		(47,026	)		251,851
Commercial mortgage-backed securities		83,504		179		(8,492	)		75,191
Total	$	467,316	$	330	$	(62,479	)	$	405,167

Debt Securities, Available-for-Sale [Table Text Block]

	Three months ended March 31,
	2023			2022
Proceeds from sales	$	2,364		$	—
Gross gains	$	1		$	—
Gross losses	$	(2	)	$	—

Debt Securities, Held-to-Maturity [Table Text Block]

			Gross		Gross
			Unrealized		Unrealized			Fair
	Amortized Cost		Gains		Losses			Value
March 31, 2023
Obligations of state and political subdivisions	$	5,411	$	2	$	(43	)	$	5,370
Residential mortgage-backed securities		2,637		—		(202	)		2,435
Total	$	8,048	$	2	$	(245	)	$	7,805

			Gross		Gross
			Unrealized		Unrealized			Fair
	Amortized Cost		Gains		Losses			Value
December 31, 2022
Obligations of state and political subdivisions	$	5,538	$	1	$	(127	)	$	5,412
Residential mortgage-backed securities		2,767		—		(257	)		2,510
Total	$	8,305	$	1	$	(384	)	$	7,922

Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]

	Less than 12 Months					12 Months or More					Total
			Unrealized					Unrealized					Unrealized
	Fair Value		Losses			Fair Value		Losses			Fair Value		Losses
March 31, 2023
Obligations of the U.S. Treasury and U.S. government agencies and corporations	$	12,995	$	(250	)	$	2,904	$	(276	)	$	15,899	$	(526	)
Obligations of state and political subdivisions		8,174		(249	)		9,500		(1,893	)		17,674		(2,142	)
Corporate bonds		11,492		(610	)		18,988		(2,641	)		30,480		(3,251	)
Residential mortgage-backed securities		46,871		(2,865	)		203,435		(40,022	)		250,306		(42,887	)
Commercial mortgage-backed securities		15,568		(725	)		42,845		(7,144	)		58,413		(7,869	)
Total	$	95,100	$	(4,699	)	$	277,672	$	(51,976	)	$	372,772	$	(56,675	)

	Less than 12 Months					12 Months or More					Total
			Unrealized					Unrealized					Unrealized
	Fair Value		Losses			Fair Value		Losses			Fair Value		Losses
December 31, 2022
Obligations of the U.S. Treasury and U.S. government agencies and corporations	$	16,017	$	(688	)	$	1,013	$	(11	)	$	17,030	$	(699	)
Obligations of state and political subdivisions		13,695		(1,427	)		4,524		(1,300	)		18,219		(2,727	)
Corporate bonds		19,606		(1,170	)		10,085		(2,365	)		29,691		(3,535	)
Residential mortgage-backed securities		134,419		(18,122	)		116,132		(28,904	)		250,551		(47,026	)
Commercial mortgage-backed securities		27,181		(2,632	)		32,432		(5,860	)		59,613		(8,492	)
Total	$	210,918	$	(24,039	)	$	164,186	$	(38,440	)	$	375,104	$	(62,479	)

Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value [Table Text Block]

	Less than 12 Months					12 Months or More					Total
			Unrealized					Unrealized					Unrealized
	Fair Value		Losses			Fair Value		Losses			Fair Value		Losses
March 31, 2023
Obligations of state and political subdivisions	$	3,493	$	(43	)	$	—	$	—		$	3,493	$	(43	)
Residential mortgage-backed securities		52		(2	)		2,384		(200	)		2,436		(202	)
Total	$	3,545	$	(45	)	$	2,384	$	(200	)	$	5,929	$	(245	)

	Less than 12 Months					12 Months or More				Total
			Unrealized					Unrealized				Unrealized
	Fair Value		Losses			Fair Value		Losses		Fair Value		Losses
December 31, 2022
Obligations of state and political subdivisions	$	3,536	$	(127	)	$	—	$	—	$	3,536	$	(127	)
Residential mortgage-backed securities		2,510		(257	)		—		—		2,510		(257	)
Total	$	6,046	$	(384	)	$	—	$	—	$	6,046	$	(384	)

Investments Classified by Contractual Maturity Date [Table Text Block]

	Securities Available For Sale				Securities Held To Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
March 31, 2023
Due within one year	$	1,989	$	1,962	$	915	$	916
Due after one year through five years		34,341		33,525		960		961
Due after five years through ten years		50,883		47,639		3,536		3,493
Due after ten years		375,119		322,981		2,637		2,435
Total debt securities	$	462,332	$	406,107	$	8,048	$	7,805

	Securities Available For Sale				Securities Held To Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
December 31, 2022
Due within one year	$	1,082	$	1,072	$	915	$	915
Due after one year through five years		32,452		31,394		960		961
Due after five years through ten years		52,093		48,229		3,663		3,536
Due after ten years		381,689		324,472		2,767		2,510
Total debt securities	$	467,316	$	405,167	$	8,305	$	7,922