Note 4 - Investment Securities (Tables)

6 Months Ended

Jun. 30, 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
June 30, 2023
Held-to-maturity securities:
Agency - GSE	$	80,838	$	-	$	(8,915	)	$	71,923
Obligations of states and political subdivisions		142,641		-		(22,480	)		120,161
Total held-to-maturity securities	$	223,479	$	-	$	(31,395	)	$	192,084
Available-for-sale debt securities:
Agency - GSE	$	31,131	$	-	$	(4,185	)	$	26,946
Obligations of states and political subdivisions		173,828		1		(21,842	)		151,987
MBS - GSE residential		237,397		-		(35,545	)		201,852
Total available-for-sale debt securities	$	442,356	$	1	$	(61,572	)	$	380,785

			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		18,777		17,246
Due after five years through ten years		71,172		62,607
Due after ten years		133,530		112,231
Total held-to-maturity securities	$	223,479	$	192,084
Available-for-sale securities:
Debt securities:
Due in one year or less	$	751	$	752
Due after one year through five years		21,252		18,951
Due after five years through ten years		36,879		30,903
Due after ten years		146,077		128,327
MBS - GSE residential		237,397		201,852
Total available-for-sale debt securities	$	442,356	$	380,785

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
June 30, 2023
Agency - GSE	$	-	$	-		$	98,869	$	(13,100	)	$	98,869	$	(13,100	)
Obligations of states and political subdivisions		4,137		(252	)		267,258		(44,070	)		271,395		(44,322	)
MBS - GSE residential		3,605		(193	)		198,247		(35,352	)		201,852		(35,545	)
Total	$	7,742	$	(445	)	$	564,374	$	(92,522	)	$	572,116	$	(92,967	)
Number of securities		18					419					437
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