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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Loans by Type (Details) - USD ($) | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
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LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | $ 1,892,764,000 |  | $ 1,848,139,000 |  |  |
Allowance for credit losses on loans | (20,442,000) | $ (20,382,000) | (19,208,000) | $ (18,085,000) | $ (19,056,000) | $ (16,615,000)
Loans, net | 1,872,322,000 |  | 1,828,931,000 |  |  |
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total | 4,309,000 |  | 4,459,000 |  |  |
Commercial | Commercial real estate - non-owner occupied |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 721,103,000 |  | 737,342,000 |  |  |
Allowance for credit losses on loans | (11,918,000) | (12,177,000) | (12,010,000) | (10,335,000) | (10,603,000) | (6,305,000)
Commercial | Commercial real estate - owner occupied |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 266,477,000 |  | 237,246,000 |  |  |
Allowance for credit losses on loans | (2,873,000) | (2,901,000) | (2,116,000) | (1,864,000) | (2,025,000) | (1,942,000)
Commercial | All other commercial loans |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 431,985,000 |  | 399,693,000 |  |  |
Allowance for credit losses on loans | (3,424,000) | (3,678,000) | (2,918,000) | (3,552,000) | (3,686,000) | (4,142,000)
Residential mortgage loans |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 407,429,000 |  | 413,714,000 |  |  |
Allowance for credit losses on loans | (1,760,000) | (1,112,000) | (1,764,000) | (1,993,000) | (2,464,000) | (2,751,000)
Consumer loans |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 65,770,000 |  | 60,144,000 |  |  |
Allowance for credit losses on loans | $ (467,000) | $ (514,000) | $ (400,000) | $ (341,000) | $ (278,000) | $ (475,000)

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