Investment Securities (Tables)

3 Months Ended

Mar. 31, 2023

Investment Securities [Abstract]

Activity in the ACL on held-to maturity securities

	Three Months ended
(Dollars in thousands)	March 31, 2023
Balance, beginning of period	$	—
Other debt securities, provision for credit losses		163
Balance, end of period	$	163

Schedule of Available-for-Sale Securities Reconciliation

			Gross		Gross		Estimated
	Amortized		Unrealized		Unrealized		Fair
(Dollars in thousands)	Cost		Gains		Losses		Value
Available-for-sale securities:
March 31, 2023
U.S. Government agencies	$	21,587	$	5	$	3,283	$	18,309
Mortgage-backed		69,151		1		7,779		61,373
Other debt securities		2,016		—		173		1,843
Total	$	92,754	$	6	$	11,235	$	81,525
December 31, 2022
U.S. Government agencies	$	21,798	$	5	$	3,625	$	18,178
Mortgage-backed		72,183		2		8,666		63,519
Other debt securities		2,018		—		128		1,890
Total	$	95,999	$	7	$	12,419	$	83,587

Schedule of Held-to-Maturity

			Gross		Gross		Estimated
	Amortized		Unrealized		Unrealized		Fair
(Dollars in thousands)	Cost		Gains		Losses		Value
Held-to-maturity securities:
March 31, 2023
U.S. Government agencies	$	146,699	$	—	$	11,815	$	134,884
Mortgage-backed		389,924		—		45,379		344,545
States and political subdivisions		1,473		54		13		1,514
Other debt securities		11,000		—		827		10,173
Total	$	549,096	$	54	$	58,034	$	491,116
December 31, 2022
U.S. Government agencies	$	148,097	$	—	$	13,601	$	134,496
Mortgage-backed		398,884		—		50,464		348,420
States and political subdivisions		1,474		35		28		1,481
Other debt securities		11,000		—		770		10,230
Total	$	559,455	$	35	$	64,863	$	494,627

Schedule of Amortized Cost of Held-to-Maturity Securities Based on Credit Rating

		March 31, 2023
		Investment Grade
(Dollars in thousands)		Aaa		Aa1		A3		Baa1		Baa2		Baa3		NR
U.S. Government agencies	$	137,358	$	—	$	—	$	—	$	—	$	—	$	9,341
Mortgage-backed		—		—		—		—		—		—		389,924
States and political subdivisions		—		1,473		—		—		—		—		—
Other debt securities		—		—		4,000		4,000		500		500		2,000
Total Held-to Maturity Securities	$	137,358	$	1,473	$	4,000	$	4,000	$	500	$	500	$	401,265

Available-For-Sale Securities and Held-to-Maturity, Continuous Unrealized Loss Position, Fair Value

	Less than				More than
	12 Months				12 Months				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Dollars in thousands)	Value		Losses		Value		Losses		Value		Losses
March 31, 2023
Available-for-sale securities:
U.S. Government agencies	$	1,060	$	6	$	16,833	$	3,277	$	17,893	$	3,283
Mortgage-backed		1,754		32		59,277		7,747		61,031		7,779
Other debt securities		—		—		1,843		173		1,843		173
Total	$	2,814	$	38	$	77,953	$	11,197	$	80,767	$	11,235

	Less than				More than
	12 Months				12 Months				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Dollars in thousands)	Value		Losses		Value		Losses		Value		Losses
December 31, 2022
Available-for-sale securities:
U.S. Government agencies	$	1,165	$	4	$	16,585	$	3,588	$	17,750	$	3,592
Mortgage-backed		29,125		2,409		34,167		6,290		63,292		8,699
Other debt securities		1,890		128		—		—		1,890		128
Total	$	32,180	$	2,541	$	50,752	$	9,878	$	82,932	$	12,419
Held-to-maturity securities:
U.S. Government agencies	$	67,332	$	2,786	$	67,163	$	10,815	$	134,495	$	13,601
Mortgage-backed		148,771		9,402		199,649		41,062		348,420		50,464
States and political subdivisions		780		28		—		—		780		28
Other debt securities		8,091		409		2,139		361		10,230		770
Total	$	224,974	$	12,625	$	268,951	$	52,238	$	493,925	$	64,863

Schedule of Securities Debt Maturities

	Available for sale				Held to maturity
	Amortized				Amortized
(Dollars in thousands)	Cost		Fair Value		Cost		Fair Value
Due in one year or less	$	46	$	46	$	1,061	$	1,042
Due after one year through five years		7,004		6,733		118,384		111,443
Due after five years through ten years		40,359		36,068		65,244		59,798
Due after ten years		45,345		38,678		364,407		318,833
Total	$	92,754	$	81,525	$	549,096	$	491,116