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Note 4 - Securities (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

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

		(Dollars in thousands)
						Gross				Gross				Estimated
		Cost				Unrealized				Unrealized				Fair
		Basis				Gains				Losses				Value
March 31, 2024
U.S. government sponsored entities		$	8,884			$	-			$	(1,018	)		$	7,866
Collateralized mortgage obligations and
residential mortgage-backed securities			145,077				-				(27,180	)			117,897
Municipal securities			264,190				2				(45,164	)			219,028
Collateralized debt obligations			2,166				-				(724	)			1,442
Total securities available-for-sale		$	420,317			$	2			$	(74,086	)		$	346,233

		(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
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

Investments Classified by Contractual Maturity Date [Table Text Block]

		(Dollars in thousands)
		Available-for-sale
						Estimated
		Cost				Fair
March 31, 2024		Basis				Value
Due in one year or less		$	250			$	248
Due from one to five years			9,904				8,775
Due from five to ten years			13,933				12,492
Due over ten years			251,153				206,821
Collateralized mortgage obligations and residential mortgage-backed securities			145,077				117,897
Total		$	420,317			$	346,233

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

		(Dollars in thousands)
		March 31,				March 31,
		2024				2023
Proceeds		$	14,697			$	-
Gross gains			-				-
Gross losses			(531	)			-

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			8,405
Ending balance, March 31, 2023		$	(55,895	)

		(Dollars in thousands)
		Unrealized gain/(loss)
Ending balance, December 31, 2023		$	(51,613	)
Current period change			(4,700	)
Ending balance, March 31, 2024		$	(56,313	)

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
March 31, 2024
U.S. government sponsored entities		$	-			$	-			$	7,866			$	(1,018	)		$	7,866			$	(1,018	)			100.0	%
Collateralized mortgage obligations and residential mortgage-backed securities			-				-				117,897				(27,180	)			117,897				(27,180	)			100.0	%
Municipal securities			-				-				218,196				(45,164	)			218,196				(45,164	)			99.6	%
Collateralized debt obligations			-				-				1,442				(724	)			1,442				(724	)			100.0	%
Total temporarily impaired		$	-			$	-			$	345,401			$	(74,086	)		$	345,401			$	(74,086	)			99.8	%
Number of securities							-								420								420

		(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

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