Note 2 - Investment Securities (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

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

(in thousands)	Amortized		Unrealized					Fair
June 30, 2025	cost		Gains		Losses			value
U.S. Treasury and other U.S. Government obligations	$	248,012	$	-	$	(8	)	$	248,004
Government sponsored enterprise obligations		82,169		119		(3,240	)		79,048
Mortgage backed securities		655,139		29		(82,977	)		572,191
Obligations of states and political subdivisions		125,223		3		(12,172	)		113,054
Other		1,623		-		(58	)		1,565
Total available for sale debt securities	$	1,112,166	$	151	$	(98,455	)	$	1,013,862
December 31, 2024
U.S. Treasury and other U.S. Government obligations	$	198,182	$	33	$	-		$	198,215
Government sponsored enterprise obligations		88,895		110		(4,847	)		84,158
Mortgage backed securities		696,767		-		(105,790	)		590,977
Obligations of states and political subdivisions		128,431		1		(14,198	)		114,234
Other		2,686		-		(156	)		2,530
Total available for sale debt securities	$	1,114,961	$	144	$	(124,991	)	$	990,114

Debt Securities, Held-to-Maturity [Table Text Block]

(in thousands)	Carrying		Unrecognized					Fair
June 30, 2025	value		Gains		Losses			value
U.S. Treasury and other U.S. Government obligations	$	1,985	$	-	$	(40	)	$	1,945
Government sponsored enterprise obligations		23,380		-		(1,303	)		22,077
Mortgage backed securities		182,615		3		(19,369	)		163,249
Total held to maturity debt securities	$	207,980	$	3	$	(20,712	)	$	187,271
December 31, 2024
U.S. Treasury and other U.S. Government obligations	$	153,850	$	-	$	(741	)	$	153,109
Government sponsored enterprise obligations		25,395		-		(2,034	)		23,361
Mortgage backed securities		190,926		2		(26,041	)		164,887
Total held to maturity debt securities	$	370,171	$	2	$	(28,816	)	$	341,357

Investments Classified by Contractual Maturity Date [Table Text Block]

	AFS Debt Securities				HTM Debt Securities
(in thousands)	Amortized cost		Fair value		Carrying value		Fair value
Due within one year	$	257,665	$	257,556	$	24,863	$	23,530
Due after one year but within five years		33,170		31,969		-		-
Due after five years but within 10 years		92,360		82,127		-		-
Due after 10 years		73,832		70,019		502		492
Mortgage backed securities		655,139		572,191		182,615		163,249
Total	$	1,112,166	$	1,013,862	$	207,980	$	187,271

Schedule of Unrealized Losses on Securities [Table Text Block]

	AFS Debt Securities
	Less than 12 months					12 months or more					Total
(in thousands)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
June 30, 2025	value		losses			value		losses			value		losses
U.S. Treasury and other U.S. Government obligations	$	248,004	$	(8	)	$	-	$	-		$	248,004	$	(8	)
Government sponsored enterprise obligations		5,606		(26	)		69,341		(3,214	)		74,947		(3,240	)
Mortgage-backed securities		15,277		(134	)		550,235		(82,843	)		565,512		(82,977	)
Obligations of states and political subdivisions		4,683		(53	)		97,939		(12,119	)		102,622		(12,172	)
Other		-		-			1,565		(58	)		1,565		(58	)
Total AFS debt securities	$	273,570	$	(221	)	$	719,080	$	(98,234	)	$	992,650	$	(98,455	)
December 31, 2024
Government sponsored enterprise obligations	$	5,801	$	(49	)	$	74,478	$	(4,798	)	$	80,279	$	(4,847	)
Mortgage-backed securities		23,159		(579	)		567,818		(105,211	)		590,977		(105,790	)
Obligations of states and political subdivisions		9,181		(164	)		101,407		(14,034	)		110,588		(14,198	)
Other		-		-			2,530		(156	)		2,530		(156	)
Total AFS debt securities	$	38,141	$	(792	)	$	746,233	$	(124,199	)	$	784,374	$	(124,991	)

	HTM Debt Securities
	Less than 12 months					12 months or more					Total
(in thousands)	Fair		Unrecognized			Fair		Unrecognized			Fair		Unrecognized
June 30, 2025	value		losses			value		losses			value		losses
U.S. Treasury and other U.S. Government obligations	$	-	$	-		$	1,946	$	(40	)	$	1,946	$	(40	)
Government sponsored enterprise obligations		339		(4	)		21,729		(1,299	)		22,068		(1,303	)
Mortgage-backed securities		12		-			162,779		(19,369	)		162,791		(19,369	)
Total HTM debt securities	$	351	$	(4	)	$	186,454	$	(20,708	)	$	186,805	$	(20,712	)
December 31, 2024
U.S. Treasury and other U.S. Government obligations	$	-	$	-		$	153,109	$	(741	)	$	153,109	$	(741	)
Government sponsored enterprise obligations		396		(6	)		22,965		(2,028	)		23,361		(2,034	)
Mortgage-backed securities		-		-			164,724		(26,041	)		164,724		(26,041	)
Total HTM debt securities	$	396	$	(6	)	$	340,798	$	(28,810	)	$	341,194	$	(28,816	)