SECURITIES (Tables)

12 Months Ended

Dec. 31, 2021

SECURITIES

Summary of carrying balances of securities

	December 31,		December 31,
	2021		2020
	(dollars in thousands)
Debt securities available-for-sale	$	942,168	$	922,869
Debt securities held-to-maturity		336,185		68,395
Equity securities with readily determinable fair value		3,443		3,292
Equity securities with no readily determinable fair value		1,927		1,552
Total securities	$	1,283,723	$	996,108

Schedule of gains (losses) on securities

	Year Ended December 31,
	2021		2020		2019
	(dollars in thousands)
Net realized gains (losses) on sales	$	—		—	$	—
Net unrealized gains (losses) on equity securities:
Readily determinable fair value		107		33		160
No readily determinable fair value		—		—		(165)
Gains (losses) on securities	$	107		33	$	(5)

Schedule of certain debt securities from the available-for-sale category to the held-to-maturity category

	June 30, 2021				March 31, 2021
	Amortized				Amortized
	Cost		Fair Value		Cost		Fair Value
	(dollars in thousands)
U.S. government agency	$	—	$	—	$	7,593	$	7,323
Mortgage-backed:
Agency residential		—		—		8,776		8,536
Agency commercial		99,271		99,275		118,792		113,861
Total	$	99,271	$	99,275	$	135,161	$	129,720

Schedule of amortized cost and fair values of securities available-for-sale, with gross unrealized gains and losses

December 31, 2021	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Available-for-sale:	(dollars in thousands)
U.S. Treasury	$	109,002	$	328	$	(354)	$	108,976
U.S. government agency		129,269		1,303		(2,467)		128,105
Municipal		293,837		6,144		(2,904)		297,077
Mortgage-backed:
Agency residential		178,236		2,149		(919)		179,466
Agency commercial		164,875		1,234		(2,048)		164,061
Corporate		63,141		1,638		(296)		64,483
Total available-for-sale		938,360		12,796		(8,988)		942,168
Held-to-maturity:
U.S. government agency		12,349		42		(51)		12,340
Municipal		15,666		809		—		16,475
Mortgage-backed:
Agency residential		20,555		196		(102)		20,649
Agency commercial		287,615		1,749		(2,801)		286,563
Total held-to-maturity		336,185		2,796		(2,954)		336,027
Total debt securities	$	1,274,545	$	15,592	$	(11,942)	$	1,278,195

December 31, 2020	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Available-for-sale:	(dollars in thousands)
U.S. government agency	$	118,282	$	3,720	$	(9)	$	121,993
Municipal		265,309		9,232		(280)		274,261
Mortgage-backed:
Agency residential		198,543		4,871		(162)		203,252
Agency commercial		246,649		4,651		(534)		250,766
Corporate		70,917		1,786		(106)		72,597
Total available-for-sale		899,700		24,260		(1,091)		922,869
Held-to-maturity:
Municipal		22,484		1,390		—		23,874
Mortgage-backed:
Agency residential		13,031		452		—		13,483
Agency commercial		32,880		2,222		(18)		35,084
Total held-to-maturity		68,395		4,064		(18)		72,441
Total debt securities	$	968,095	$	28,324	$	(1,109)	$	995,310

Schedule of amortized cost and fair value of securities by contractual maturity

	Available-for-Sale				Held-to-Maturity
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(dollars in thousands)
Due in 1 year or less	$	33,315	$	33,640	$	2,394	$	2,410
Due after 1 year through 5 years		110,975		113,251		15,887		16,417
Due after 5 years through 10 years		332,565		332,954		9,343		9,587
Due after 10 years		118,394		118,796		391		401
Mortgage-backed:
Agency residential		178,236		179,466		20,555		20,649
Agency commercial		164,875		164,061		287,615		286,563
Total	$	938,360	$	942,168	$	336,185	$	336,027

Schedule of gross unrealized losses and fair value of investments

	Investments in a Continuous Unrealized Loss Position
	Less than 12 Months				12 Months or More				Total
December 31, 2021	Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value
Available-for-sale:	(dollars in thousands)
U.S. Treasury	$	(354)	$	68,410	$	—	$	—	$	(354)	$	68,410
U.S. government agency		(2,183)		80,219		(284)		5,578		(2,467)		85,797
Municipal		(2,018)		89,424		(886)		17,327		(2,904)		106,751
Mortgage-backed:
Agency residential		(851)		91,703		(68)		4,305		(919)		96,008
Agency commercial		(1,921)		113,111		(127)		6,443		(2,048)		119,554
Corporate		(7)		2,737		(289)		4,671		(296)		7,408
Total available-for-sale		(7,334)		445,604		(1,654)		38,324		(8,988)		483,928
Held-to-maturity:
U.S. government agency		(51)		4,949		—		—		(51)		4,949
Mortgage-backed:
Agency residential		(102)		14,932		—		—		(102)		14,932
Agency commercial		(2,673)		174,428		(128)		2,776		(2,801)		177,204
Total held-to-maturity		(2,826)		194,309		(128)		2,776		(2,954)		197,085
Total debt securities	$	(10,160)	$	639,913	$	(1,782)	$	41,100	$	(11,942)	$	681,013

	Investments in a Continuous Unrealized Loss Position
	Less than 12 Months				12 Months or More				Total
December 31, 2020	Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value
Available-for-sale:	(dollars in thousands)
U.S. government agency	$	(9)	$	5,919	$	—	$	—	$	(9)	$	5,919
Municipal		(280)		19,652		—		—		(280)		19,652
Mortgage-backed:
Agency residential		(142)		20,387		(20)		4,490		(162)		24,877
Agency commercial		(524)		57,126		(10)		3,449		(534)		60,575
Corporate		(106)		4,849		—		—		(106)		4,849
Total available-for-sale		(1,061)		107,933		(30)		7,939		(1,091)		115,872
Held-to-maturity:
Mortgage-backed:
Agency commercial		(18)		2,983		—		—		(18)		2,983
Total held-to-maturity		(18)		2,983		—		—		(18)		2,983
Total debt securities	$	(1,079)	$	110,916	$	(30)	$	7,939	$	(1,109)	$	118,855

Schedule of equity securities with initial cost and carrying values of equity securities, with cumulative net unrealized gains and losses

	Readily		No Readily
	Determinable		Determinable
December 31, 2021	Fair Value		Fair Value
	(dollars in thousands)
Initial cost	$	3,142	$	2,092
Cumulative net unrealized gains (losses)		301		(165)
Carrying value	$	3,443	$	1,927

	Readily		No Readily
	Determinable		Determinable
December 31, 2020	Fair Value		Fair Value
	(dollars in thousands)
Initial cost	$	3,098	$	1,717
Cumulative net unrealized gains (losses)		194		(165)
Carrying value	$	3,292	$	1,552