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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Loans by Type (Details) - USD ($) | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021
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LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total | $ 1,814,510,000 |  | $ 1,740,040,000 |  |  |
Allowance for credit losses on loans | (19,056,000) | $ (18,346,000) | (16,615,000) | $ (14,547,000) | $ (14,271,000) | $ (13,537,000)
Purchased credit impaired loans |  |  | 1,027,000 |  |  |
Loans, net | 1,795,454,000 |  | 1,723,425,000 |  |  |
Commercial |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total |  |  | 1,111,498,000 |  |  |
Allowance for credit losses on loans |  |  | (11,298,000) | $ (8,894,000) | $ (8,922,000) | $ (8,293,000)
Commercial | Commercial real estate - nonowner occupied |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total | 733,783,000 |  | 675,597,000 |  |  |
Allowance for credit losses on loans | (10,603,000) | (9,654,000) | (6,305,000) |  |  |
Commercial | Commercial real estate - owner occupied |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total | 227,801,000 |  | 205,910,000 |  |  |
Allowance for credit losses on loans | (2,025,000) | (1,942,000) | (1,942,000) |  |  |
Commercial | All other commercial loans |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total | 392,684,000 |  | 410,077,000 |  |  |
Allowance for credit losses on loans | (3,686,000) | (3,580,000) | (4,142,000) |  |  |
Residential mortgage loans |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total | 404,233,000 |  | 393,582,000 |  |  |
Allowance for credit losses on loans | (2,464,000) | (2,864,000) | (2,751,000) |  |  |
Consumer loans |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans and Leases Receivable, Gross, Total | 56,009,000 |  | 54,874,000 |  |  |
Allowance for credit losses on loans | $ (278,000) | $ (306,000) | $ (475,000) |  |  |

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