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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Components of Troubled Debt Restructured Loans and Leases (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | $ 8,201 | $ 8,997
NTM Loans |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 3,432 | 2,631
Traditional Loans |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 4,769 | 6,366
Commercial | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 2,289 | 3,884
Commercial | SBA |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 264 | 265
Commercial | NTM Loans | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 0 | 0
Commercial | NTM Loans | SBA |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 0 | 0
Commercial | Traditional Loans | Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 2,289 | 3,884
Commercial | Traditional Loans | SBA |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 264 | 265
Consumer | Single family residential mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 5,648 | 4,848
Consumer | Other consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 0 | 0
Consumer | NTM Loans | Single family residential mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 3,432 | 2,631
Consumer | NTM Loans | Other consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 0 | 0
Consumer | Traditional Loans | Single family residential mortgage |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | 2,216 | 2,217
Consumer | Traditional Loans | Other consumer |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Troubled debt restructured loans and leases | $ 0 | $ 0

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