Securities (Tables)

3 Months Ended

Mar. 31, 2022

Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

	March 31, 2022
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Available-for-sale:	Cost		Gains		Losses		Value
U.S. Treasury	$	239,056	$	—	$	(9,143)	$	229,913
U.S. Government-sponsored enterprises (GSEs)		512		—		(6)		506
Municipal securities		55,318		67		(144)		55,241
Other debt securities		28,982		139		(581)		28,540
Mortgage-backed securities (GSEs)		236,929		167		(10,813)		226,283
Total	$	560,797	$	373	$	(20,687)	$	540,483

	March 31, 2022
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Held-to-maturity:	Cost		Gains		Losses		Value
U.S. Treasury	$	150,471	$	—	$	(2,131)	$	148,340
U.S. Government-sponsored enterprises (GSEs)		51,425		—		(3,634)		47,791
Municipal securities		54,459		—		(4,561)		49,898
Mortgage-backed securities (GSEs)		33,177		—		(1,472)		31,705
Total	$	289,532	$	—	$	(11,798)	$	277,734

	December 31, 2021
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Available-for-sale:	Cost		Gains		Losses		Value
U.S. Treasury	$	138,212	$	64	$	(518)	$	137,758
U.S. Government-sponsored enterprises (GSEs)		21,898		76		(173)		21,801
Municipal securities		67,310		512		(2)		67,820
Other debt securities		26,989		313		(82)		27,220
Mortgage-backed securities (GSEs)		228,011		971		(1,128)		227,854
Total	$	482,420	$	1,936	$	(1,903)	$	482,453

	December 31, 2021
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
Held-to-maturity:	Cost		Gains		Losses		Value
U.S. Government-sponsored enterprises (GSEs)	$	31,023	$	20	$	(87)	$	30,956
Municipal securities		45,946		63		(19)		45,990
Total	$	76,969	$	83	$	(106)	$	76,946

Investments Classified by Contractual Maturity Date

The amortized cost and estimated fair value of securities at March 31, 2022 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.

	March 31, 2022
	Amortized		Fair
Available-for-sale:	Cost		Value
Due in one year or less	$	902	$	903
Due from one year to five years		178,294		173,044
Due from five years to ten years		99,601		95,174
Due after ten years		45,071		45,079
		323,868		314,200
Mortgage-backed securities		236,929		226,283
Total	$	560,797	$	540,483
Held-to-maturity:
Due in one year or less	$	—	$	—
Due from one year to five years		150,471		148,339
Due from five years to ten years		28,250		26,931
Due after ten years		77,634		70,759
		256,355		246,029
Mortgage-backed securities		33,177		31,705
Total	$	289,532	$	277,734

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 available-for-sale and held-to-maturity have been in a continuous unrealized loss position (in thousands):

	March 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	$	229,913	$	(9,143)	19	$	—	$	—	—	$	229,913	$	(9,143)	19
U.S. Government-sponsored enterprises (GSEs)		—		—	—		506		(6)	2		506		(6)	2
Municipal securities		9,885		(144)	17		—		—	—		9,885		(144)	17
Other debt securities		16,086		(505)	16		1,424		(76)	1		17,510		(581)	17
Mortgage-backed securities (GSEs)		201,144		(10,627)	70		7,701		(186)	6		208,845		(10,813)	76
Total	$	457,028	$	(20,419)	122	$	9,631	$	(268)	9	$	466,659	$	(20,687)	131
	March 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	$	148,339	$	(2,131)	4	$	—	$	—	—	$	148,339	$	(2,131)	4
U.S. Government-sponsored enterprises (GSEs)		23,735		(1,576)	6		24,057		(2,058)	7		47,792		(3,634)	13
Municipal securities		49,628		(4,561)	34		—		—	—		49,628		(4,561)	34
Mortgage-backed securities (GSEs)		31,705		(1,472)	5		—		—	—		31,705		(1,472)	5
Total	$	253,407	$	(9,740)	49	$	24,057	$	(2,058)	7	$	277,464	$	(11,798)	56

	December 31, 2021
	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	$	99,959	$	(518)	11	$	—	$	—	—	$	99,959	$	(518)	11
U.S. Government-sponsored enterprises (GSEs)		14,156		(168)	2		579		(5)	2		14,735		(173)	4
Municipal securities		2,519		(2)	1		—		—	—		2,519		(2)	1
Other debt securities		5,983		(82)	6		—		—	—		5,983		(82)	6
Mortgage-backed securities (GSEs)		159,725		(1,002)	31		8,233		(126)	6		167,958		(1,128)	37
Total	$	282,342	$	(1,772)	51	$	8,812	$	(131)	8	$	291,154	$	(1,903)	59
	December 31, 2021
	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. Government-sponsored enterprises (GSEs)	$	21,901	$	(87)	8	$	—	$	—	—	$	21,901	$	(87)	8
Municipal securities		4,173		(19)	6		—		—	—		4,173		(19)	6
Total	$	26,074	$	(106)	14	$	—	$	—	—	$	26,074	$	(106)	14

Schedule of Other Investments

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

	March 31,		December 31,
	2022		2021
Federal Reserve Bank stock	$	9,698	$	9,693
Federal Home Loan Bank stock		6,451		6,451
First National Bankers Bank stock		350		350
Total	$	16,499	$	16,494