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Note 3 - Investment Securities (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Marketable Securities [Table Text Block]

						Gross				Gross
		Amortized				Unrealized				Unrealized				Fair
(In thousands)		Cost				Gains				Losses				Value
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
December 31, 2021
Securities available for sale:
Agency mortgage-backed securities		$	102,767			$	604			$	635			$	102,736
Agency CMO			7,863				98				-				7,961
Other debt securities:
Agency notes and bonds			130,641				489				2,034				129,096
Treasury notes and bonds			50,339				-				545				49,794
Municipal obligations			153,610				4,721				583				157,748
Total securities available for sale		$	445,220			$	5,912			$	3,797			$	447,335
Securities held to maturity:
Other debt securities:
Corporate notes		$	2,000			$	4			$	-			$	2,004
Total securities held to maturity		$	2,000			$	4			$	-			$	2,004

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		$	36,739			$	35,856			$	-			$	-
Due after one year through five years			218,647				201,651				-				-
Due after five years through ten years			42,163				39,334				2,000				1,507
Due after ten years			105,179				90,762				5,000				3,804
			402,728				367,603				7,000				5,311
Mortgage-backed securities and CMO			104,738				93,216				-				-
		$	507,466			$	460,819			$	7,000			$	5,311

Schedule of Unrealized Loss on Investments [Table Text Block]

		Number of								Gross
		Investment				Fair				Unrealized
		Positions				Value				Losses
(Dollars in thousands)
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

		Number of								Gross
		Investment				Fair				Unrealized
		Positions				Value				Losses
(Dollars in thousands)
December 31, 2021:
Continuous loss position less than twelve months:
Agency mortgage-backed securities			23			$	67,512			$	607
Agency notes and bonds			39				98,042				1,710
Treasury notes and bonds			11				49,190				545
Muncipal obligations			49				32,642				479
Total less than twelve months			122				247,386				3,341
Continuous loss position more than twelve months:
Agency mortgage-backed securities			1				1,357				28
Agency notes and bonds			4				13,676				324
Muncipal obligations			4				2,957				104
Total more than twelve months			9				17,990				456
Total securities available for sale			131			$	265,376			$	3,797

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563

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