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Note 3 - Securities (Tables)

12 Months Ended

Dec. 31, 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
December 31, 2023
U.S. government sponsored entities		$	8,884			$	-			$	(1,001	)		$	7,883
U.S. treasury securities			-				-				-				-
Collateralized mortgage obligations and residential mortgage-backed securities			149,410				-				(25,946	)			123,464
Municipal securities			278,813				60				(40,203	)			238,670
Collateralized debt obligations			2,170				-				(813	)			1,357
Total securities available-for-sale		$	439,277			$	60			$	(67,963	)		$	371,374

		(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
December 31, 2023		Basis				Value
Due in one year or less		$	250			$	249
Due from one to five years			10,433				9,325
Due from five to ten years			21,801				20,486
Due over ten years			257,383				217,850
Collateralized mortgage obligations and residential mortgage-backed securities			149,410				123,464
Total		$	439,277			$	371,374

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

		(Dollars in thousands)
		December 31,				December 31,
		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, December 31, 2022		$	(64,300	)
Current period change			12,687
Ending balance, December 31, 2023		$	(51,613	)

		(Dollars in thousands)
		Unrealized gain/(loss)
Ending balance, December 31, 2021		$	4,276
Current period change			(68,576	)
Ending balance, December 31, 2022		$	(64,300	)

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
December 31, 2023
U.S. government sponsored entities		$	-			$	-			$	7,883			$	(1,001	)		$	7,883			$	(1,001	)			100.0	%
Collateralized mortgage obligations and residential mortgage-backed securities			-				-				123,464				(25,946	)			123,464				(25,946	)			100.0	%
Municipal securities			-				-				229,595				(40,203	)			229,595				(40,203	)			96.2	%
Collateralized debt obligations			-				-				1,357				(813	)			1,357				(813	)			100.0	%
Total temporarily impaired		$	-			$	-			$	362,299			$	(67,963	)		$	362,299			$	(67,963	)			97.6	%
Number of securities							-								434								434

		(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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