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Note 6 - Securities (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

		(Dollars in thousands)
						Gross				Gross				Estimated
		Cost				Unrealized				Unrealized				Fair
		Basis				Gains				Losses				Value
September 30, 2023
U.S. government sponsored entities		$	8,883			$	-			$	(1,333	)			7,550
U.S. treasury securities			-				-				-				-
Collateralized mortgage obligations and residential mortgage-backed securities			152,118				-				(33,022	)			119,096
Municipal securities			279,837				-				(68,358	)			211,479
Collateralized debt obligations			2,173				-				(1,018	)			1,155
Total securities available-for-sale		$	443,011			$	-			$	(103,731	)		$	339,280

		(Dollars in thousands)
						Gross				Gross				Estimated
		Cost				Unrealized				Unrealized				Fair
		Basis				Gains				Losses				Value
December 31, 2022
U.S. government sponsored entities		$	8,883			$	-			$	(1,258	)		$	7,625
U.S. treasury securities			389				-				-				389
Collateralized mortgage obligations and residential mortgage-backed securities			163,000				-				(28,884	)			134,116
Municipal securities			281,032				7				(53,321	)			227,718
Collateralized debt obligations			2,173				-				(1,125	)			1,048
Total securities available-for-sale		$	455,477			$	7			$	(84,588	)		$	370,896

Investments Classified by Contractual Maturity Date [Table Text Block]

		(Dollars in thousands)
		Available-for-sale
						Estimated
		Cost				Fair
September 30, 2023		Basis				Value
Due in one year or less		$	690			$	688
Due from one to five years			10,293				8,853
Due from five to ten years			21,761				19,048
Due over ten years			258,149				191,595
Collateralized mortgage obligations and residential mortgage-backed securities			152,118				119,096
Total		$	443,011			$	339,280

Schedule of Realized Gain (Loss) [Table Text Block]

		September 30,				September 30,
		2023				2022
Proceeds		$	124			$	10,178
Gross gains			-				41
Gross losses			-				(18	)

		(Dollars in thousands)
		September 30,				September 30,
		2023				2022
Proceeds		$	476			$	53,953
Gross gains			-				733
Gross losses			(48	)			(71	)

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

		(Dollars in thousands)
		Unrealized gain/(loss)
Ending balance, June 30, 2022		$	(57,781	)
Current period change			(22,058	)
Ending balance, September 30, 2022		$	(79,839	)

		(Dollars in thousands)
		Unrealized gain/(loss)
Ending balance, June 30, 2023		$	(60,185	)
Current period change			(18,663	)
Ending balance, September 30, 2023		$	(78,848	)

		(Dollars in thousands)
		Unrealized gain/(loss)
Ending balance, December 31, 2021		$	4,276
Current period change			(84,115	)
Ending balance, September 30, 2022		$	(79,839	)

		(Dollars in thousands)
		Unrealized gain/(loss)
Ending balance, December 31, 2022		$	(64,300	)
Current period change			(14,548	)
Ending balance, September 30, 2023		$	(78,848	)

Unrealized Gain (Loss) on Investments [Table Text Block]

		(Dollars in thousands)
		Less than 12 months								12 months or longer								Total
		Estimated								Estimated								Estimated								Percentage of
		Fair				Unrealized				Fair				Unrealized				Fair				Unrealized				Total Portfolio
		Value				Losses				Value				Losses				Value				Losses				in Loss Position
September 30, 2023
U.S. government sponsored entities		$	-			$	-			$	7,550			$	(1,333	)		$	7,550			$	(1,333	)			100.0	%
Collateralized mortgage obligations and residential mortgage-backed securities			-				-				119,096				(33,022	)			119,096				(33,022	)			100.0	%
Municipal securities			12,529				(1,185	)			198,950				(67,173	)			211,479				(68,358	)			100.0	%
Collateralized debt obligations			-				-				1,155				(1,018	)			1,155				(1,018	)			100.0	%
Total temporarily impaired		$	12,529			$	(1,185	)		$	326,751			$	(102,546	)		$	339,280			$	(103,731	)			100.0	%
Number of securities							20								425								445

		(Dollars in thousands)
		Less than 12 months								12 months or longer								Total
		Estimated								Estimated								Estimated								Percentage of
		Fair				Unrealized				Fair				Unrealized				Fair				Unrealized				Total Portfolio
		Value				Losses				Value				Losses				Value				Losses				in Loss Position
December 31, 2022
U.S. government sponsored entities		$	-			$	-			$	7,625			$	(1,258	)		$	7,625			$	(1,258	)			100.0	%
Collateralized mortgage obligations and residential mortgage-backed securities			32,700				(4,955	)			101,416				(23,929	)			134,116				(28,884	)			100.0	%
Municipal securities			171,581				(35,935	)			52,961				(17,386	)			224,542				(53,321	)			98.6	%
Collateralized debt obligations			-				-				1,048				(1,125	)			1,048				(1,125	)			100.0	%
Total temporarily impaired		$	204,281			$	(40,890	)		$	163,050			$	(43,698	)		$	367,331			$	(84,588	)			99.0	%
Number of securities							311								135								446

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