Investments in Securities (Tables)

12 Months Ended

Dec. 31, 2022

Investments in Securities

Schedule of investment securities

	December 31, 2022
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
	(In Thousands)
AVAILABLE-FOR-SALE SECURITIES:
Agency mortgage-backed securities	$	327,266	$	—	$	40,784	$	286,482
Agency collateralized mortgage obligations		90,205		—		11,731		78,474
States and political subdivisions securities		60,667		119		3,291		57,495
Small Business Administration securities		75,076		—		6,935		68,141
	$	553,214	$	119	$	62,741	$	490,592

	December 31, 2021
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
	(In Thousands)
AVAILABLE-FOR-SALE SECURITIES:
Agency mortgage-backed securities	$	219,624	$	10,561	$	744	$	229,441
Agency collateralized mortgage obligations		204,332		2,443		2,498		204,277
States and political subdivisions securities		38,440		1,618		43		40,015
Small Business Administration securities		26,802		497		—		27,299
	$	489,198	$	15,119	$	3,285	$	501,032

Schedule of amortized cost and fair values of securities

	December 31, 2022
					Amortized		Gross		Gross
	Amortized		Fair Value		Carrying		Unrealized		Unrealized		Fair
	Cost		Adjustment		Value		Gains		Losses		Value
	(In Thousands)
HELD-TO-MATURITY SECURITIES:
Agency mortgage-backed securities	$	73,891	$	3,015	$	76,906	$	—	$	9,820	$	67,086
Agency collateralized mortgage obligations		122,247		(2,885)		119,362		—		14,129		105,233
States and political subdivisions		6,239		(12)		6,227		—		781		5,446
	$	202,377	$	118	$	202,495	$	—	$	24,730	$	177,765

Schedule of amortized cost and fair value of available-for-sale and held-to-maturity securities by contractual maturity

	Available-for-Sale				Held-to-Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Carrying Value		Value
	(In Thousands)
One year or less	$	—	$	—	$	—	$	—
After one through two years		—		—		—		—
After two through three years		—		—		—		—
After three through four years		—		—		—		—
After four through five years		245		245		—		—
After five through fifteen years		6,761		6,565		2,578		2,233
After fifteen years		53,661		50,685		3,649		3,213
Securities not due on a single maturity date		492,547		433,097		196,268		172,319
	$	553,214	$	490,592	$	202,495	$	177,765

Schedule of amortized cost and fair values of securities pledged as collateral

	2022				2021
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In Thousands)
Public deposits	$	15,402	$	13,489	$	4,742	$	5,029
Collateralized borrowing accounts		210,330		186,170		133,242		139,112
Other		4,018		3,764		6,257		6,461
	$	229,750	$	203,423	$	144,241	$	150,602

Schedule of gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position

	2022
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Securities	Value		Losses		Value		Losses		Value		Losses
	(In Thousands)
AVAILABLE-FOR-SALE SECURITIES:
Agency mortgage-backed securities	$	221,562	$	(27,597)	$	64,918	$	(13,187)	$	286,480	$	(40,784)
Agency collateralized mortgage obligations		28,537		(3,262)		40,642		(8,469)		69,179		(11,731)
Small Business Administration securities		60,473		(5,224)		7,667		(1,711)		68,140		(6,935)
States and political subdivisions securities		44,455		(2,913)		3,753		(378)		48,208		(3,291)
	$	355,027	$	(38,996)	$	116,980	$	(23,745)	$	472,007	$	(62,741)

	2022
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Securities	Value		Losses		Value		Losses		Value		Losses
	(In Thousands)
HELD-TO-MATURITY SECURITIES:
Agency mortgage-backed securities	$	59,218	$	(7,766)	$	7,868	$	(2,054)	$	67,086	$	(9,820)
Agency collateralized mortgage obligations		61,055		(6,411)		44,178		(7,718)		105,233		(14,129)
States and political subdivisions securities		900		(101)		4,546		(680)		5,446		(781)
	$	121,173	$	(14,278)	$	56,592	$	(10,452)	$	177,765	$	(24,730)

	2021
	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
Description of Securities	Value		Losses		Value		Losses		Value		Losses
	(In Thousands)
AVAILABLE-FOR-SALE SECURITIES:
Agency mortgage-backed securities	$	47,769	$	(388)	$	10,583	$	(356)	$	58,352	$	(744)
Agency collateralized mortgage obligations		92,727		(1,588)		16,298		(910)		109,025		(2,498)
States and political subdivisions securities		6,537		(43)		—		—		6,537		(43)
	$	147,033	$	(2,019)	$	26,881	$	(1,266)	$	173,914	$	(3,285)