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INVESTMENT SECURITIES (Tables) | 6 Months Ended
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Jun. 30, 2024
INVESTMENT SECURITIES |
Schedule of gross amortized cost and fair value of available-for-sale debt securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Gross |  | Gross |  | Allowance |  |  | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | for |  | Fair
June 30, 2024 (in thousands) | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Credit Losses |  | Value
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. Treasury securities and U.S. Government agencies | ​ | $ | 326,276 | ​ | $ | — | ​ | $ | (11,287) | ​ | $ | — | ​ | $ | 314,989
Private label mortgage-backed security | ​ |  | 337 | ​ |  | 1,379 | ​ |  | — | ​ |  | — | ​ |  | 1,716
Mortgage-backed securities - residential | ​ |  | 151,725 | ​ |  | 115 | ​ |  | (14,021) | ​ |  | — | ​ |  | 137,819
Collateralized mortgage obligations | ​ |  | 21,411 | ​ |  | 39 | ​ |  | (1,013) | ​ |  | — | ​ |  | 20,437
Corporate bonds | ​ |  | 2,009 | ​ |  | 6 | ​ |  | — | ​ |  | — | ​ |  | 2,015
Trust preferred security | ​ |  | 3,831 | ​ |  | 262 | ​ |  | — | ​ |  | — | ​ |  | 4,093
Total available-for-sale debt securities | ​ | $ | 505,589 | ​ | $ | 1,801 | ​ | $ | (26,321) | ​ | $ | — | ​ | $ | 481,069
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Gross |  | Gross |  | Allowance |  |  | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | for |  | Fair
December 31, 2023 (in thousands) | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Credit Losses |  | Value
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. Treasury securities and U.S. Government agencies | ​ | $ | 421,576 | ​ | $ | — | ​ | $ | (14,543) | ​ | $ | — | ​ | $ | 407,033
Private label mortgage-backed security | ​ |  | 443 | ​ |  | 1,330 | ​ |  | — | ​ |  | — | ​ |  | 1,773
Mortgage-backed securities - residential | ​ |  | 167,996 | ​ |  | 176 | ​ |  | (13,462) | ​ |  | — | ​ |  | 154,710
Collateralized mortgage obligations | ​ |  | 22,698 | ​ |  | 36 | ​ |  | (1,075) | ​ |  | — | ​ |  | 21,659
Corporate bonds | ​ |  | 2,012 | ​ |  | 8 | ​ |  | — | ​ |  | — | ​ |  | 2,020
Trust preferred security | ​ |  | 3,800 | ​ |  | 318 | ​ |  | — | ​ |  | — | ​ |  | 4,118
Total available-for-sale debt securities | ​ | $ | 618,525 | ​ | $ | 1,868 | ​ | $ | (29,080) | ​ | $ | — | ​ | $ | 591,313
Schedule of carrying value, gross unrecognized gains and losses, and fair value of held-to-maturity debt securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | ​ |  | Gross |  | Gross |  |  | ​ |  | Allowance
​ | ​ | Amortized | ​ | Unrecognized | ​ | Unrecognized | ​ | Fair | ​ | for
June 30, 2024 (in thousands) | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value | ​ | Credit Losses
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. Treasury securities and U.S. Government agencies | ​ | $ | 65,000 | ​ | $ | — | ​ | $ | (80) | ​ | $ | 64,920 | ​ | $ | —
Mortgage-backed securities - residential | ​ | ​ | 24 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 24 | ​ | ​ | —
Collateralized mortgage obligations | ​ |  | 6,097 | ​ |  | 45 | ​ |  | (112) | ​ |  | 6,030 | ​ |  | —
Corporate bonds | ​ |  | 4,992 | ​ |  | 22 | ​ |  | — | ​ |  | 5,014 | ​ |  | (4)
Obligations of state and political subdivisions | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Total held-to-maturity debt securities | ​ | $ | 76,113 | ​ | $ | 67 | ​ | $ | (192) | ​ | $ | 75,988 | ​ | $ | (4)
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | ​ |  | Gross |  | Gross |  |  | ​ |  | Allowance
​ | ​ | Amortized | ​ | Unrecognized | ​ | Unrecognized | ​ | Fair | ​ | for
December 31, 2023 (in thousands) | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value | ​ | Credit Losses
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. Treasury securities and U.S. Government agencies | ​ | $ | 65,000 | ​ | $ | — | ​ | $ | (163) | ​ | $ | 64,837 | ​ | $ | —
Mortgage-backed securities - residential | ​ | ​ | 25 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 25 | ​ | ​ | —
Collateralized mortgage obligations | ​ |  | 6,386 | ​ |  | 48 | ​ |  | (121) | ​ |  | 6,313 | ​ |  | —
Corporate bonds | ​ |  | 4,986 | ​ |  | 6 | ​ |  | — | ​ |  | 4,992 | ​ |  | (10)
Obligations of state and political subdivisions | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Total held-to-maturity debt securities | ​ | $ | 76,397 | ​ | $ | 54 | ​ | $ | (284) | ​ | $ | 76,167 | ​ | $ | (10)
Schedule of amortized cost and fair value of debt securities by contractual maturity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Available-for-Sale | ​ | Held-to-Maturity
​ | ​ | Debt Securities | ​ | Debt Securities
​ |  | Amortized |  | Fair |  | Amortized |  | Fair
June 30, 2024 (in thousands) | ​ | Cost | ​ | Value | ​ | Cost | ​ | Value
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Due in one year or less | ​ | $ | 116,363 | ​ | $ | 114,833 | ​ | $ | 50,000 | ​ | $ | 49,931
Due from one year to five years | ​ |  | 211,922 | ​ |  | 202,171 | ​ |  | 19,992 | ​ |  | 20,003
Due from five years to ten years | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Due beyond ten years | ​ |  | 3,831 | ​ |  | 4,093 | ​ |  | — | ​ |  | —
Private label mortgage-backed security | ​ |  | 337 | ​ |  | 1,716 | ​ |  | — | ​ |  | —
Mortgage-backed securities - residential | ​ |  | 151,725 | ​ |  | 137,819 | ​ |  | 24 | ​ |  | 24
Collateralized mortgage obligations | ​ |  | 21,411 | ​ |  | 20,437 | ​ |  | 6,097 | ​ |  | 6,030
Total debt securities | ​ | $ | 505,589 | ​ | $ | 481,069 | ​ | $ | 76,113 | ​ | $ | 75,988
Schedule of debt securities with unrealized losses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | 12 months or more | ​ | Total |
​ |  | ​ | ​ |  | Unrealized |  | ​ | ​ |  | Unrealized |  | ​ | ​ |  | Unrealized |
June 30, 2024 (in thousands) | ​ | Fair Value | ​ | Losses | ​ | Fair Value | ​ | Losses | ​ | Fair Value | ​ | Losses |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale debt securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. Treasury securities and U.S. Government agencies | ​ | $ | 51,232 | ​ | $ | (113) | ​ | $ | 263,757 | ​ | $ | (11,174) | ​ | $ | 314,989 | ​ | $ | (11,287) | ​
Mortgage-backed securities - residential | ​ | ​ | 8,668 | ​ | ​ | (183) | ​ | ​ | 121,552 | ​ | ​ | (13,838) | ​ | ​ | 130,220 | ​ | ​ | (14,021) | ​
Collateralized mortgage obligations | ​ | ​ | 162 | ​ | ​ | — | ​ | ​ | 17,670 | ​ | ​ | (1,013) | ​ | ​ | 17,832 | ​ | ​ | (1,013) | ​
Trust preferred security | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​
Total available-for-sale debt securities | ​ | $ | 60,062 | ​ | $ | (296) | ​ | $ | 402,979 | ​ | $ | (26,025) | ​ | $ | 463,041 | ​ | $ | (26,321) | ​
​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Less than 12 months | ​ | 12 months or more | ​ | Total |
​ |  | ​ | ​ |  | Unrealized |  | ​ | ​ |  | Unrealized |  | ​ | ​ |  | Unrealized |
December 31, 2023 (in thousands) | ​ | Fair Value | ​ | Losses | ​ | Fair Value | ​ | Losses | ​ | Fair Value | ​ | Losses |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale debt securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. Treasury securities and U.S. Government agencies | ​ | $ | 26,707 | ​ | $ | (84) | ​ | $ | 380,326 | ​ | $ | (14,459) | ​ | $ | 407,033 | ​ | $ | (14,543) | ​
Mortgage-backed securities - residential | ​ | ​ | 1,911 | ​ | ​ | (23) | ​ | ​ | 136,180 | ​ | ​ | (13,439) | ​ | ​ | 138,091 | ​ | ​ | (13,462) | ​
Collateralized mortgage obligations | ​ | ​ | 1,668 | ​ | ​ | (52) | ​ | ​ | 17,239 | ​ | ​ | (1,023) | ​ | ​ | 18,907 | ​ | ​ | (1,075) | ​
Trust preferred security | ​ |  | — | ​ | ​ | — | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​
Total available-for-sale debt securities | ​ | $ | 30,286 | ​ | $ | (159) | ​ | $ | 533,745 | ​ | $ | (28,921) | ​ | $ | 564,031 | ​ | $ | (29,080) | ​
​ ​
Schedule of allowance for credit losses on investment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ACLS Roll-forward
​ | ​ | ​ | Three Months Ended June 30,
​ | ​ | ​ | 2024 | 2023
​ | ​ | ​ | Beginning | ​ | ​ | ​ | Charge- | ​ | ​ | ​ | Ending | ​ | Beginning | ​ | ​ | ​ | Charge- | ​ | ​ | ​ | Ending
(in thousands) | ​ | ​ | Balance | ​ | Provision | ​ | offs | ​ | Recoveries | ​ | Balance | ​ | Balance | ​ | Provision | ​ | offs | ​ | Recoveries | ​ | Balance
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-Sale Securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate Bonds | ​ | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 3 | ​ | $ | (3) | ​ | $ | — | ​ | $ | — | ​ | $ | —
Held-to-Maturity Securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate Bonds | ​ | ​ | ​ | 10 | ​ | ​ | (6) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4 | ​ | ​ | 10 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ | $ | 10 | ​ | $ | (6) | ​ | $ | — | ​ | $ | — | ​ | $ | 4 | ​ | $ | 13 | ​ | $ | (3) | ​ | $ | — | ​ | $ | — | ​ | $ | 10
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ACLS Roll-forward
​ | ​ | ​ | Six Months Ended June 30,
​ | ​ | ​ | 2024 | 2023
​ | ​ | ​ | Beginning | ​ | ​ | ​ | Charge- | ​ | ​ | ​ | Ending | ​ | Beginning | ​ | ​ | ​ | Charge- | ​ | ​ | ​ | Ending
(in thousands) | ​ | ​ | Balance | ​ | Provision | ​ | offs | ​ | Recoveries | ​ | Balance | ​ | Balance | ​ | Provision | ​ | offs | ​ | Recoveries | ​ | Balance
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-Sale Securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate Bonds | ​ | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | —
Held-to-Maturity Securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate Bonds | ​ | ​ | ​ | 10 | ​ | ​ | (6) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4 | ​ | ​ | 10 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | ​ | $ | 10 | ​ | $ | (6) | ​ | $ | — | ​ | $ | — | ​ | $ | 4 | ​ | $ | 10 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 10
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of pledged investment securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | June 30, 2024 |  | December 31, 2023 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amortized cost | ​ | $ | 74,425 | ​ | $ | 106,169 | ​
Fair value | ​ |  | 74,008 | ​ |  | 99,530 | ​
Carrying amount | ​ | ​ | 74,017 | ​ | ​ | 99,530 | ​
Schedule of carrying value, gross unrealized gains and losses, and fair value of equity securities with readily determinable fair values | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Gross |  | Gross |  |  | ​ |
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair |
June 30, 2024 (in thousands) | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Freddie Mac preferred stock | ​ | $ | — | ​ | $ | 281 | ​ | $ | — | ​ | $ | 281 | ​
Total equity securities with readily determinable fair values | ​ | $ | — | ​ | $ | 281 | ​ | $ | — | ​ | $ | 281 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Gross |  | Gross |  |  | ​ |
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair |
December 31, 2023 (in thousands) | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Value |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Freddie Mac preferred stock | ​ | $ | — | ​ | $ | 174 | ​ | $ | — | ​ | $ | 174 | ​
Total equity securities with readily determinable fair values | ​ | $ | — | ​ | $ | 174 | ​ | $ | — | ​ | $ | 174 | ​
Schedule of equity securities with readily determinable fair values, the gross realized and unrealized gains and losses recognized | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gains (Losses) Recognized on Equity Securities | ​
​ | ​ | Three Months Ended June 30, 2024 |  | Three Months Ended June 30, 2023 |
(in thousands) |  | Realized |  | Unrealized |  | Total |  | Realized |  | Unrealized |  | Total | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Freddie Mac preferred stock | ​ | $ | — | ​ | $ | 46 | ​ | $ | 46 | ​ | $ | — | ​ | $ | 15 | ​ | $ | 15 | ​
Total equity securities with readily determinable fair value | ​ | $ | — | ​ | $ | 46 | ​ | $ | 46 | ​ | $ | — | ​ | $ | 15 | ​ | $ | 15 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gains (Losses) Recognized on Equity Securities | ​
​ | ​ | Six Months Ended June 30, 2024 |  | Six Months Ended June 30, 2023 | ​
(in thousands) | ​ | Realized | ​ | Unrealized | ​ | Total | ​ | Realized | ​ | Unrealized | ​ | Total | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Freddie Mac preferred stock | ​ | $ | — | ​ | $ | 107 | ​ | $ | 107 | ​ | $ | — | ​ | $ | 10 | ​ | $ | 10 | ​
Total equity securities with readily determinable fair value | ​ | $ | — | ​ | $ | 107 | ​ | $ | 107 | ​ | $ | — | ​ | $ | 10 | ​ | $ | 10 | ​
​

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