Note 4 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

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

			Gross		Gross
	Amortized		unrealized		unrealized			Fair
(dollars in thousands)	cost		gains		losses			value
March 31, 2023
Held-to-maturity securities:
Agency - GSE	$	80,572	$	-	$	(7,726	)	$	72,846
Obligations of states and political subdivisions		142,540		-		(21,135	)		121,405
Total held-to-maturity securities	$	223,112	$	-	$	(28,861	)	$	194,251
Available-for-sale debt securities:
Agency - GSE	$	31,108	$	-	$	(3,958	)	$	27,150
Obligations of states and political subdivisions		174,418		5		(20,634	)		153,789
MBS - GSE residential		243,942		-		(33,467	)		210,475
Total available-for-sale debt securities	$	449,468	$	5	$	(58,059	)	$	391,414

			Gross		Gross
	Amortized		unrealized		unrealized			Fair
(dollars in thousands)	cost		gains		losses			value
December 31, 2022
Held-to-maturity securities:
Agency - GSE	$	80,306	$	-	$	(9,243	)	$	71,063
Obligations of states and political subdivisions		142,438		-		(26,221	)		116,217
Total held-to-maturity securities	$	222,744	$	-	$	(35,464	)	$	187,280
Available-for-sale debt securities:
Agency - GSE	$	36,076	$	-	$	(4,543	)	$	31,533
Obligations of states and political subdivisions		197,935		501		(26,542	)		171,894
MBS - GSE residential		254,730		-		(37,295	)		217,435
Total available-for-sale debt securities	$	488,741	$	501	$	(68,380	)	$	420,862

Investments Classified by Contractual Maturity Date [Table Text Block]

	Amortized		Fair
(dollars in thousands)	cost		value
Held-to-maturity securities:
Due in one year or less	$	-	$	-
Due after one year through five years		9,818		9,182
Due after five years through ten years		74,339		66,907
Due after ten years		138,955		118,162
Total held-to-maturity securities	$	223,112	$	194,251
Available-for-sale securities:
Debt securities:
Due in one year or less	$	-	$	-
Due after one year through five years		20,963		18,959
Due after five years through ten years		37,944		32,248
Due after ten years		146,619		129,732
MBS - GSE residential		243,942		210,475
Total available-for-sale debt securities	$	449,468	$	391,414

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

	Less than 12 months					More than 12 months					Total
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
(dollars in thousands)	value		losses			value		losses			value		losses
March 31, 2023
Agency - GSE	$	-	$	-		$	99,996	$	(11,684	)	$	99,996	$	(11,684	)
Obligations of states and political subdivisions		19,043		(1,317	)		254,498		(40,452	)		273,541		(41,769	)
MBS - GSE residential		7,208		(380	)		203,267		(33,087	)		210,475		(33,467	)
Total	$	26,251	$	(1,697	)	$	557,761	$	(85,223	)	$	584,012	$	(86,920	)
Number of securities		45					390					435
December 31, 2022
Agency - GSE	$	9,285	$	(377	)	$	93,312	$	(13,409	)	$	102,597	$	(13,786	)
Obligations of states and political subdivisions		170,484		(26,928	)		112,353		(25,835	)		282,837		(52,763	)
MBS - GSE residential		61,803		(6,018	)		155,632		(31,277	)		217,435		(37,295	)
Total	$	241,572	$	(33,323	)	$	361,297	$	(70,521	)	$	602,869	$	(103,844	)
Number of securities		272					213					485