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v3.23.1

SECURITIES (Tables) | 3 Months Ended
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Mar. 31, 2023
SECURITIES |
Schedule of amortized cost and fair values of securities available-for-sale, with gross unrealized gains and losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
March 31, 2023 |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Fair Value
Available-for-sale: | ​ | (dollars in thousands)
U.S. Treasury | ​ | $ | 169,824 | ​ | $ | — | ​ | $ | (12,804) | ​ | $ | — | ​ | $ | 157,020
U.S. government agency | ​ | ​ | 57,111 | ​ | ​ | — | ​ | ​ | (3,413) | ​ | ​ | — | ​ | ​ | 53,698
Municipal | ​ | ​ | 274,849 | ​ | ​ | 114 | ​ | ​ | (26,079) | ​ | ​ | — | ​ | ​ | 248,884
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | 218,509 | ​ | ​ | 20 | ​ | ​ | (16,553) | ​ | ​ | — | ​ | ​ | 201,976
Agency commercial | ​ | ​ | 150,195 | ​ | ​ | 4 | ​ | ​ | (15,190) | ​ | ​ | — | ​ | ​ | 135,009
Corporate | ​ | ​ | 62,616 | ​ | ​ | — | ​ | ​ | (3,981) | ​ | ​ | (600) | ​ | ​ | 58,035
Total available-for-sale | ​ | $ | 933,104 | ​ | $ | 138 | ​ | $ | (78,020) | ​ | $ | (600) | ​ | $ | 854,622
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
March 31, 2023 |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Allowance for Credit Losses
Held-to-maturity: | ​ | (dollars in thousands)
U.S. government agency | ​ | $ | 88,430 | ​ | $ | — | ​ | $ | (8,257) | ​ | $ | 80,173 | ​ | $ | —
Municipal | ​ | ​ | 41,121 | ​ | ​ | 426 | ​ | ​ | (128) | ​ | ​ | 41,419 | ​ | ​ | —
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | 100,500 | ​ | ​ | — | ​ | ​ | (5,275) | ​ | ​ | 95,225 | ​ | ​ | —
Agency commercial | ​ | ​ | 306,378 | ​ | ​ | — | ​ | ​ | (41,270) | ​ | ​ | 265,108 | ​ | ​ | —
Total held-to-maturity | ​ | $ | 536,429 | ​ | $ | 426 | ​ | $ | (54,930) | ​ | $ | 481,925 | ​ | $ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2022 |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Available-for-sale: | ​ | (dollars in thousands)
U.S. Treasury | ​ | $ | 169,860 | ​ | $ | — | ​ | $ | (15,345) | ​ | $ | 154,515
U.S. government agency | ​ | ​ | 59,291 | ​ | ​ | — | ​ | ​ | (4,134) | ​ | ​ | 55,157
Municipal | ​ | ​ | 275,972 | ​ | ​ | 46 | ​ | ​ | (32,189) | ​ | ​ | 243,829
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | 213,676 | ​ | ​ | 5 | ​ | ​ | (18,240) | ​ | ​ | 195,441
Agency commercial | ​ | ​ | 150,060 | ​ | ​ | — | ​ | ​ | (17,172) | ​ | ​ | 132,888
Corporate | ​ | ​ | 65,597 | ​ | ​ | 55 | ​ | ​ | (3,958) | ​ | ​ | 61,694
Total available-for-sale | ​ | $ | 934,456 | ​ | $ | 106 | ​ | $ | (91,038) | ​ | $ | 843,524
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2022 | ​ | Amortized Cost | ​ | Gross Unrealized Gains | ​ | Gross Unrealized Losses | ​ | Fair Value
Held-to-maturity: | ​ | (dollars in thousands)
U.S. government agency | ​ | $ | 88,424 | ​ | $ | — | ​ | $ | (9,728) | ​ | $ | 78,696
Municipal | ​ | ​ | 42,167 | ​ | ​ | 195 | ​ | ​ | (314) | ​ | ​ | 42,048
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | 102,728 | ​ | ​ | — | ​ | ​ | (6,470) | ​ | ​ | 96,258
Agency commercial | ​ | ​ | 308,281 | ​ | ​ | — | ​ | ​ | (46,482) | ​ | ​ | 261,799
Total held-to-maturity | ​ | $ | 541,600 | ​ | $ | 195 | ​ | $ | (62,994) | ​ | $ | 478,801
​
Schedule of certain debt securities from the available-for-sale category to the held-to-maturity category | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2022
​ | ​ | Amortized | ​ | ​
​ |  | Cost |  | Fair Value
​ | ​ | (dollars in thousands)
U.S. government agency | ​ | $ | 78,841 | ​ | $ | 71,048
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | 8,175 | ​ | ​ | 7,651
Agency commercial | ​ | ​ | 27,834 | ​ | ​ | 25,432
Total | ​ | $ | 114,850 | ​ | $ | 104,131
​
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 | ​ | $ | 30,344 | ​ | $ | 29,783 | ​ | $ | 1,211 | ​ | $ | 1,213
Due after 1 year through 5 years | ​ | ​ | 230,070 | ​ | ​ | 218,061 | ​ | ​ | 27,853 | ​ | ​ | 27,207
Due after 5 years through 10 years | ​ | ​ | 242,248 | ​ | ​ | 214,337 | ​ | ​ | 94,481 | ​ | ​ | 87,530
Due after 10 years | ​ | ​ | 61,738 | ​ | ​ | 55,456 | ​ | ​ | 6,006 | ​ | ​ | 5,642
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | 218,509 | ​ | ​ | 201,976 | ​ | ​ | 100,500 | ​ | ​ | 95,225
Agency commercial | ​ | ​ | 150,195 | ​ | ​ | 135,009 | ​ | ​ | 306,378 | ​ | ​ | 265,108
Total | ​ | $ | 933,104 | ​ | $ | 854,622 | ​ | $ | 536,429 | ​ | $ | 481,925
​
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
March 31, 2023 |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value
Available-for-sale: | ​ | (dollars in thousands)
U.S. Treasury | ​ | $ | — | ​ | $ | — | ​ | $ | (12,804) | ​ | $ | 157,020 | ​ | $ | (12,804) | ​ | $ | 157,020
U.S. government agency | ​ | ​ | (829) | ​ | ​ | 22,107 | ​ | ​ | (2,584) | ​ | ​ | 31,591 | ​ | ​ | (3,413) | ​ | ​ | 53,698
Municipal | ​ | ​ | (475) | ​ | ​ | 37,739 | ​ | ​ | (25,604) | ​ | ​ | 188,362 | ​ | ​ | (26,079) | ​ | ​ | 226,101
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | (1,301) | ​ | ​ | 48,400 | ​ | ​ | (15,252) | ​ | ​ | 148,449 | ​ | ​ | (16,553) | ​ | ​ | 196,849
Agency commercial | ​ | ​ | (794) | ​ | ​ | 22,044 | ​ | ​ | (14,396) | ​ | ​ | 112,275 | ​ | ​ | (15,190) | ​ | ​ | 134,319
Corporate | ​ | ​ | (1,426) | ​ | ​ | 41,224 | ​ | ​ | (2,516) | ​ | ​ | 15,449 | ​ | ​ | (3,942) | ​ | ​ | 56,673
Total available-for-sale | ​ | $ | (4,825) | ​ | $ | 171,514 | ​ | $ | (73,156) | ​ | $ | 653,146 | ​ | $ | (77,981) | ​ | $ | 824,660
​ ​ The following table presents gross unrealized losses and fair value of debt securities, aggregated by category and length of time that individual debt securities have been in a continuous unrealized loss position, as of December 31, 2022:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Investments in a Continuous Unrealized Loss Position
​ | ​ | Less than 12 Months | ​ | 12 Months or More | ​ | Total
December 31, 2022 |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value
Available-for-sale: | ​ | (dollars in thousands)
U.S. Treasury | ​ | $ | (8,401) | ​ | $ | 92,445 | ​ | $ | (6,944) | ​ | $ | 62,070 | ​ | $ | (15,345) | ​ | $ | 154,515
U.S. government agency | ​ | ​ | (2,980) | ​ | ​ | 47,370 | ​ | ​ | (1,154) | ​ | ​ | 7,787 | ​ | ​ | (4,134) | ​ | ​ | 55,157
Municipal | ​ | ​ | (10,906) | ​ | ​ | 149,261 | ​ | ​ | (21,283) | ​ | ​ | 87,794 | ​ | ​ | (32,189) | ​ | ​ | 237,055
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | (8,332) | ​ | ​ | 127,288 | ​ | ​ | (9,908) | ​ | ​ | 65,692 | ​ | ​ | (18,240) | ​ | ​ | 192,980
Agency commercial | ​ | ​ | (4,764) | ​ | ​ | 62,672 | ​ | ​ | (12,408) | ​ | ​ | 70,216 | ​ | ​ | (17,172) | ​ | ​ | 132,888
Corporate | ​ | ​ | (2,594) | ​ | ​ | 52,190 | ​ | ​ | (1,364) | ​ | ​ | 5,600 | ​ | ​ | (3,958) | ​ | ​ | 57,790
Total available-for-sale | ​ | ​ | (37,977) | ​ | ​ | 531,226 | ​ | ​ | (53,061) | ​ | ​ | 299,159 | ​ | ​ | (91,038) | ​ | ​ | 830,385
Held-to-maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government agency | ​ | ​ | (1,754) | ​ | ​ | 15,751 | ​ | ​ | (7,974) | ​ | ​ | 62,945 | ​ | ​ | (9,728) | ​ | ​ | 78,696
Municipal | ​ | ​ | (314) | ​ | ​ | 23,433 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (314) | ​ | ​ | 23,433
Mortgage-backed: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Agency residential | ​ | ​ | (4,039) | ​ | ​ | 78,452 | ​ | ​ | (2,431) | ​ | ​ | 17,806 | ​ | ​ | (6,470) | ​ | ​ | 96,258
Agency commercial | ​ | ​ | (16,716) | ​ | ​ | 103,298 | ​ | ​ | (29,766) | ​ | ​ | 158,501 | ​ | ​ | (46,482) | ​ | ​ | 261,799
Total held-to-maturity | ​ | ​ | (22,823) | ​ | ​ | 220,934 | ​ | ​ | (40,171) | ​ | ​ | 239,252 | ​ | ​ | (62,994) | ​ | ​ | 460,186
Total debt securities | ​ | $ | (60,800) | ​ | $ | 752,160 | ​ | $ | (93,232) | ​ | $ | 538,411 | ​ | $ | (154,032) | ​ | $ | 1,290,571
​
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
March 31, 2023 |  | Fair Value |  | Fair Value
​ | ​ | (dollars in thousands)
Initial cost | ​ | $ | 3,142 | ​ | $ | 2,283
Cumulative net unrealized gains (losses) | ​ | ​ | 3 | ​ | ​ | (303)
Carrying value | ​ | $ | 3,145 | ​ | $ | 1,980
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Readily | ​ | No Readily
​ | ​ | Determinable | ​ | Determinable
December 31, 2022 |  | Fair Value |  | Fair Value
​ | ​ | (dollars in thousands)
Initial cost | ​ | $ | 3,142 | ​ | $ | 2,142
Cumulative net unrealized gains (losses) | ​ | ​ | (113) | ​ | ​ | (165)
Carrying value | ​ | $ | 3,029 | ​ | $ | 1,977
​
Schedule of sales of debt securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2023 |  | 2022
​ | ​ | (dollars in thousands)
Proceeds from sales | ​ | $ | 145,844 | ​ | $ | —
Gross realized gains | ​ | ​ | — | ​ | ​ | —
Gross realized losses | ​ | ​ | (1,007) | ​ | ​ | —
​
Schedule of unrealized gains (losses) on equity securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2023 |  | 2022
​ | ​ | (dollars in thousands)
Readily determinable fair value | ​ | $ | 116 | ​ | $ | (187)
No readily determinable fair value | ​ | ​ | (138) | ​ | ​ | —
Unrealized gains (losses) on equity securities | ​ | $ | (22) | ​ | $ | (187)

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