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Note 3 - Securities (Tables)

12 Months Ended

Dec. 31, 2022

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, 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

		(Dollars in thousands)
						Gross				Gross				Estimated
		Cost				Unrealized				Unrealized				Fair
		Basis				Gains				Losses				Value
December 31, 2021
U.S. government sponsored entities		$	8,883			$	-			$	(214	)		$	8,669
U.S. treasury securities			400				-				-				400
Collateralized mortgage obligations and residential mortgage-backed securities			187,279				961				(3,539	)			184,701
Municipal securities			322,750				9,904				(527	)			332,127
Collateralized debt obligations			2,173				-				(1,181	)			992
Total securities available-for-sale		$	521,485			$	10,865			$	(5,461	)		$	526,889

Investments Classified by Contractual Maturity Date [Table Text Block]

		(Dollars in thousands)
		Available-for-sale
						Estimated
		Cost				Fair
December 31, 2022		Basis				Value
Due in one year or less		$	105			$	105
Due from one to five years			4,868				4,493
Due from five to ten years			21,099				18,993
Due over ten years			266,405				213,189
Collateralized mortgage obligations and residential mortgage-backed securities			163,000				134,116
Total		$	455,477			$	370,896

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

		(Dollars in thousands)
		December 31,				December 31,
		2022				2021
Proceeds		$	53,953			$	43,756
Gross gains			733				2,010
Gross losses			(71	)			(23	)

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

		(Dollars in thousands)
		Unrealized
		gain/(loss)
Ending balance, December 31, 2020		$	10,441
Current period change			(6,165	)
Ending balance, December 31, 2021		$	4,276

		(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, 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

		(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, 2021
U.S. government sponsored entities		$	8,669			$	(214	)		$	-			$	-			$	8,669			$	(214	)			100.0	%
Collateralized mortgage obligations and residential mortgage-backed securities			126,373				(3,175	)			8,109				(364	)			134,482				(3,539	)			72.8	%
Municipal securities			70,309				(527	)			-				-				70,309				(527	)			21.2	%
Collateralized debt obligations			-				-				992				(1,181	)			992				(1,181	)			100.0	%
Total temporarily impaired		$	205,351			$	(3,916	)		$	9,101			$	(1,545	)		$	214,452			$	(5,461	)			40.7	%
Number of securities							133								5								138

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