Securities (Tables)

9 Months Ended

Sep. 30, 2023

Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

	September 30, 2023
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Available-for-sale:	Cost		Gains		Losses		Value
U.S. Treasury	$	84,550	$	—	$	(10,817)	$	73,733
U.S. Government-sponsored enterprises (GSEs)		59,683		1,430		(160)		60,953
Municipal securities		18,661		2		(1,158)		17,505
Other debt securities		34,784		67		(4,225)		30,626
Mortgage-backed securities (GSEs)		231,153		—		(28,839)		202,314
Total	$	428,831	$	1,499	$	(45,199)	$	385,131

	December 31, 2022
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Available-for-sale:	Cost		Gains		Losses		Value
U.S. Treasury	$	241,506	$	—	$	(17,853)	$	223,653
U.S. Government-sponsored enterprises (GSEs)		1,593		—		(18)		1,575
Municipal securities		19,210		17		(616)		18,611
Other debt securities		32,959		—		(2,408)		30,551
Mortgage-backed securities (GSEs)		233,948		6		(24,451)		209,503
Total	$	529,216	$	23	$	(45,346)	$	483,893

Schedule of Held-to-maturity Securities Reconciliation

	September 30, 2023
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Held-to-maturity:	Cost		Gains		Losses		Value
U.S. Treasury	$	150,126	$	—	$	(2,925)	$	147,201
U.S. Government-sponsored enterprises (GSEs)		49,642		—		(9,013)		40,629
Municipal securities		52,947		—		(8,872)		44,075
Mortgage-backed securities (GSEs)		29,598		—		(5,178)		24,420
Total	$	282,313	$	—	$	(25,988)	$	256,325

	December 31, 2022
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Held-to-maturity:	Cost		Gains		Losses		Value
U.S. Treasury	$	150,295	$	—	$	(5,613)	$	144,682
U.S. Government-sponsored enterprises (GSEs)		50,539		—		(8,037)		42,502
Municipal securities		53,694		—		(7,550)		46,144
Mortgage-backed securities (GSEs)		31,421		—		(4,136)		27,285
Total	$	285,949	$	—	$	(25,336)	$	260,613

Investments Classified by Contractual Maturity Date

The amortized cost and estimated fair value of securities at September 30, 2023 by contractual maturity for non-mortgage backed securities are shown below (in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	September 30, 2023
	Amortized		Fair
Available-for-sale:	Cost		Value
Due in one year or less	$	11,410	$	11,386
Due from one year to five years		56,074		49,911
Due from five years to ten years		119,939		112,003
Due after ten years		10,255		9,517
		197,678		182,817
Mortgage-backed securities		231,153		202,314
Total	$	428,831	$	385,131
Held-to-maturity:
Due in one year or less	$	150,126	$	147,201
Due from one year to five years		—		—
Due from five years to ten years		47,513		39,301
Due after ten years		55,076		45,403
		252,715		231,905
Mortgage-backed securities		29,598		24,420
Total	$	282,313	$	256,325

Schedule of Unrealized Loss on Investments

The following tables present the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities AFS and HTM have been in a continuous unrealized loss position (in thousands):

	September 30, 2023
	Less than 12 Months					12 Months or Greater					Total
			Gross		Number			Gross		Number			Gross		Number
	Fair		Unrealized		of	Fair		Unrealized		of	Fair		Unrealized		of
Available-for-sale:	Value		Losses		Securities	Value		Losses		Securities	Value		Losses		Securities
U.S. Treasury	$	—	$	—	—	$	73,733	$	(10,817)	9	$	73,733	$	(10,817)	9
U.S. Government-sponsored enterprises (GSEs)		20,181		(143)	4		1,488		(17)	3		21,669		(160)	7
Municipal securities		7,729		(283)	10		9,475		(875)	17		17,204		(1,158)	27
Other debt securities		2,654		(270)	2		26,980		(3,955)	25		29,634		(4,225)	27
Mortgage-backed securities (GSEs)		29,670		(547)	15		172,645		(28,292)	89		202,315		(28,839)	104
Total	$	60,234	$	(1,243)	31	$	284,321	$	(43,956)	143	$	344,555	$	(45,199)	174
	September 30, 2023
	Less than 12 Months					12 Months or Greater					Total
			Gross		Number			Gross		Number			Gross		Number
	Fair		Unrealized		of	Fair		Unrealized		of	Fair		Unrealized		of
Held-to-maturity:	Value		Losses		Securities	Value		Losses		Securities	Value		Losses		Securities
U.S. Treasury	$	—	$	—	—	$	147,201	$	(2,925)	4	$	147,201	$	(2,925)	4
U.S. Government-sponsored enterprises (GSEs)		—		—	—		40,629		(9,013)	13		40,629		(9,013)	13
Municipal securities		—		—	—		44,076		(8,872)	35		44,076		(8,872)	35
Mortgage-backed securities (GSEs)		—		—	—		24,419		(5,178)	5		24,419		(5,178)	5
Total	$	—	$	—	—	$	256,325	$	(25,988)	57	$	256,325	$	(25,988)	57

	December 31, 2022
	Less than 12 Months					12 Months or Greater					Total
			Gross		Number			Gross		Number			Gross		Number
	Fair		Unrealized		of	Fair		Unrealized		of	Fair		Unrealized		of
Available-for-sale:	Value		Losses		Securities	Value		Losses		Securities	Value		Losses		Securities
U.S. Treasury	$	134,414	$	(7,610)	9	$	89,239	$	(10,243)	11	$	223,653	$	(17,853)	20
U.S. Government-sponsored enterprises (GSEs)		1,266		(14)	1		309		(4)	2		1,575		(18)	3
Municipal securities		13,146		(616)	20		—		—	—		13,146		(616)	20
Other debt securities		25,044		(1,866)	20		5,506		(542)	6		30,550		(2,408)	26
Mortgage-backed securities (GSEs)		111,598		(8,968)	86		96,285		(15,483)	28		207,883		(24,451)	114
Total	$	285,468	$	(19,074)	136	$	191,339	$	(26,272)	47	$	476,807	$	(45,346)	183
	December 31, 2022
	Less than 12 Months					12 Months or Greater					Total
			Gross		Number			Gross		Number			Gross		Number
	Fair		Unrealized		of	Fair		Unrealized		of	Fair		Unrealized		of
Held-to-maturity:	Value		Losses		Securities	Value		Losses		Securities	Value		Losses		Securities
U.S. Treasury	$	144,683	$	(5,613)	4	$	—	$	—	—	$	144,683	$	(5,613)	4
U.S. Government-sponsored enterprises (GSEs)	$	13,048	$	(2,503)	3	$	29,451	$	(5,534)	10	$	42,499	$	(8,037)	13
Municipal securities		40,770		(6,387)	28		5,375		(1,163)	7		46,145		(7,550)	35
Mortgage-backed securities (GSEs)		—		—	—		27,285		(4,136)	5		27,285		(4,136)	5
Total	$	198,501	$	(14,503)	35	$	62,111	$	(10,833)	22	$	260,612	$	(25,336)	57

Schedule of Other Investments

The following is the amortized cost and carrying value of other investments (in thousands):

	September 30,		December 31,
	2023		2022
Federal Reserve Bank stock	$	9,669	$	9,783
Federal Home Loan Bank stock		3,786		5,397
First National Bankers Bank stock		350		350
Total	$	13,805	$	15,530