Note 3 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Marketable Securities [Table Text Block]

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
(In thousands)	Cost		Gains		Losses		Value
March 31, 2024
Securities available for sale:
Agency mortgage-backed securities	$	77,981	$	-	$	9,511	$	68,470
Agency CMO		48,276		54		613		47,717
Other debt securities:
Agency notes and bonds		135,931		7		8,671		127,267
Treasury notes and bonds		59,756		-		1,394		58,362
Municipal obligations		139,551		208		13,431		126,328
Total securities available for sale	$	461,495	$	269	$	33,620	$	428,144
Securities held to maturity:
Other debt securities:
Corporate notes	$	7,000	$	-	$	2,595	$	4,405
Total securities held to maturity	$	7,000	$	-	$	2,595	$	4,405
December 31, 2023
Securities available for sale:
Agency mortgage-backed securities	$	81,166	$	-	$	9,122	$	72,044
Agency CMO		25,402		94		323		25,173
Other debt securities:
Agency notes and bonds		138,174		38		8,707		129,505
Treasury notes and bonds		64,758		-		1,674		63,084
Municipal obligations		159,049		655		12,239		147,465
Total securities available for sale	$	468,549	$	787	$	32,065	$	437,271
Securities held to maturity:
Other debt securities:
Corporate notes	$	7,000	$	-	$	2,554	$	4,446
Total securities held to maturity	$	7,000	$	-	$	2,554	$	4,446

Investments Classified by Contractual Maturity Date [Table Text Block]

	Securities Available for Sale				Securities Held to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
(In thousands)
Due in one year or less	$	67,535	$	65,951	$	-	$	-
Due after one year through five
years		149,731		140,052		-		-
Due after five years through
ten years		41,277		38,658		2,000		1,270
Due after ten years		76,695		67,296		5,000		3,135
		335,238		311,957		7,000		4,405
Mortgage-backed securities and
CMO		126,257		116,187		-		-
	$	461,495	$	428,144	$	7,000	$	4,405

Schedule of Unrealized Loss on Investments [Table Text Block]

	Number of				Gross
	Investment		Fair		Unrealized
	Positions		Value		Losses
(Dollars in thousands)
March 31, 2024:
Securities available for sale:
Continuous loss position less than twelve months:
Agency CMO		12	$	29,646	$	256
Agency notes and bonds		6		4,586		47
Muncipal obligations		80		33,199		2,603
Total less than twelve months		98		67,431		2,906
Continuous loss position more than twelve months:
Agency mortgage-backed securities		95		68,470		9,511
Agency CMO		22		4,675		357
Agency notes and bonds		52		121,127		8,624
Treasury notes and bonds		20		58,362		1,394
Muncipal obligations		129		77,625		10,828
Total more than twelve months		318		330,259		30,714
Total securities available for sale		416	$	397,690	$	33,620
Securities held to maturity:
Continuous loss position more than twelve months:
Corporate notes		4	$	4,405	$	2,595
Total more than twelve months		4		4,405		2,595
Total securities held to maturity		4	$	4,405	$	2,595

December 31, 2023:
Securities available for sale:
Continuous loss position less than twelve months:
Agency CMO	3	$	8,019	$	30
Agency notes and bonds	3		2,754		12
Muncipal obligations	74		32,124		2,405
Total less than twelve months	80		42,897		2,447
Continuous loss position more than twelve months:
Agency mortgage-backed securities	96		72,044		9,122
Agency CMO	22		4,998		293
Agency notes and bonds	52		123,416		8,695
Treasury notes and bonds	21		63,084		1,674
Muncipal obligations	130		79,643		9,834
Total more than twelve months	321		343,185		29,618
Total securities available for sale	401	$	386,082	$	32,065
Securities held to maturity:
Continuous loss position more than twelve months:
Corporate notes	4	$	4,446	$	2,554
Total more than twelve months	4		4,446		2,554
Total securities held to maturity	4	$	4,446	$	2,554