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FAIR VALUES OF FINANCIAL INSTRUMENTS - Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Quoted Prices in Active Markets for Identical Assets (Level 1) | Single family residential |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other real estate owned |  | $ 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and industrial |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held-for-sale | $ 0 |
Impaired loans | 0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other consumer |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | SBA |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 0 | 0
Significant Other Observable Inputs (Level 2) | Single family residential |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other real estate owned |  | 0
Significant Other Observable Inputs (Level 2) | Commercial and industrial |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held-for-sale | 538 |
Impaired loans | 0 |
Significant Other Observable Inputs (Level 2) | Other consumer |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 0 |
Significant Other Observable Inputs (Level 2) | SBA |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 0 | 0
Significant Unobservable Inputs (Level 3) | Single family residential |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other real estate owned |  | 1,415
Significant Unobservable Inputs (Level 3) | Commercial and industrial |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held-for-sale | 0 |
Impaired loans | 502 |
Significant Unobservable Inputs (Level 3) | Other consumer |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 3 |
Significant Unobservable Inputs (Level 3) | SBA |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 76 | 174
Carrying Value | Single family residential |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other real estate owned |  | 1,415
Carrying Value | Commercial and industrial |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held-for-sale | 538 |
Impaired loans | 502 |
Carrying Value | Other consumer |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | 3 |
Carrying Value | SBA |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired loans | $ 76 | $ 174

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