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INVESTMENT SECURITIES - Narrative (Details) | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2025 USD ($) security | Jun. 30, 2025 USD ($) | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2023 USD ($)
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 43 |  |  |  |  |
Allowance for credit loss | $ 74,000 | $ 66,000 | $ 69,000 | $ 66,000 | $ 68,000 | $ 69,000
Unrealized losses | 15,927,000 |  | 39,038,000 |  |  |
Expected credit losses | 0 |  |  |  |  |
Debt securities, held-to-maturity, allowance for credit loss | $ 0 |  | 0 |  |  |
Debt Securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Number of securities in portfolio | security | 416 |  |  |  |  |
Number of securities in unrealized loss position | security | 319 |  |  |  |  |
Number of securities in portfolio | security | 58 |  |  |  |  |
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 272 |  |  |  |  |
Number of securities in unrealized loss position | security | 35 |  |  |  |  |
SBA pool securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 26 |  |  |  |  |
Allowance for credit loss | $ 0 |  | 0 |  |  |
Unrealized losses | $ 691,000 |  | 1,554,000 |  |  |
State, county and municipal securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 14 |  |  |  |  |
Number of securities in unrealized loss position | security | 8 |  |  |  |  |
Allowance for credit loss | $ 0 |  | 0 |  |  |
Unrealized losses | $ 541,000 |  | 1,070,000 |  |  |
Corporate debt securities |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 5 |  |  |  |  |
Allowance for credit loss | $ 74,000 |  | 69,000 |  |  |
Unrealized losses | $ 465,000 |  | 594,000 |  |  |
U.S. Treasuries |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Number of securities in unrealized loss position | security | 2 |  |  |  |  |
Allowance for credit loss | $ 0 |  | 0 |  |  |
Unrealized losses | 562,000 |  | 5,065,000 |  |  |
Collateral Pledged |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Pledged securities, carrying value | $ 484,300,000 |  | $ 449,200,000 |  |  |

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