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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Components of Troubled Debt Restructured Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | $ 16,684 | $ 8,997
Commitments to lend to clients with outstanding loans classified as TDRs | 63 | 63
Accruing TDRs | 12,500 | 4,700
Non-accrual TDRs | 4,100 | 4,300
PMB Acquisition |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 7,900 |
Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 5,241 | 3,884
Commercial | Commercial real estate |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 4,243 | 0
Commercial | SBA |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 265 | 265
Consumer | Single family residential mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 6,935 | 4,848
Consumer | Other consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | $ 0 | $ 0

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