Note 3 - Investment Securities (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Marketable Securities [Table Text Block]

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
(In thousands)	Cost		Gains		Losses		Value
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
December 31, 2022
Securities available for sale:
Agency mortgage-backed securities	$	95,056	$	-	$	11,193	$	83,863
Agency CMO		9,682		20		349		9,353
Other debt securities:
Agency notes and bonds		151,143		-		13,162		137,981
Treasury notes and bonds		82,646		-		3,914		78,732
Municipal obligations		168,939		177		18,226		150,890
Total securities available for sale	$	507,466	$	197	$	46,844	$	460,819
Securities held to maturity:
Other debt securities:
Corporate notes	$	7,000	$	-	$	1,689	$	5,311
Total securities held to maturity	$	7,000	$	-	$	1,689	$	5,311

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	$	61,941	$	60,796	$	-	$	-
Due after one year through five years		166,347		156,117		-		-
Due after five years through ten years		42,731		40,603		2,000		1,279
Due after ten years		90,962		82,538		5,000		3,167
		361,981		340,054		7,000		4,446
Mortgage-backed securities and CMO		106,568		97,217		-		-
	$	468,549	$	437,271	$	7,000	$	4,446

Gain (Loss) on Securities [Table Text Block]

	Number of				Gross
	Investment		Fair		Unrealized
	Positions		Value		Losses
(Dollars in thousands)
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
December 31, 2022:
Securities available for sale:
Continuous loss position less than twelve months:
Agency mortgage-backed securities		69	$	27,561	$	2,214
Agency CMO		23		6,287		336
Agency notes and bonds		15		35,079		1,314
Treasury notes and bonds		17		31,615		997
Muncipal obligations		154		81,218		5,960
Total less than twelve months		278		181,760		10,821
Continuous loss position more than twelve months:
Agency mortgage-backed securities		28		56,303		8,979
Agency CMO		3		257		13
Agency notes and bonds		45		102,902		11,848
Treasury notes and bonds		13		47,117		2,917
Muncipal obligations		98		52,279		12,266
Total more than twelve months		187		258,858		36,023
Total securities available for sale		465	$	440,618	$	46,844
Securities held to maturity:
Continuous loss position less than twelve months:
Corporate notes		3	$	3,779	$	1,221
Total less than twelve months		3		3,779		1,221
Continuous loss position more than twelve months:
Corporate notes		1		1,532		468
Total more than twelve months		1		1,532		468
Total securities held to maturity		4	$	5,311	$	1,689