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FAIR VALUE ACCOUNTING - Assets Measured on a Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Assets Measured on a Recurring Basis |  |
Total investment securities | $ 161,135 | $ 165,991
U.S. government agency obligations |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 18,703 | 18,313
Mortgage-backed securities |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 75,976 | 78,610
Corporate debt securities |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 40,253 | 40,251
Recurring |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 161,135 | 165,991
Total equity investments | 2,299 | 1,794
Total | 163,434 | 167,785
Recurring | Equity Investments |  |
Assets Measured on a Recurring Basis |  |
Total equity investments | 423 | 338
Recurring | Equity investments measured at NAV | Equity Investments |  |
Assets Measured on a Recurring Basis |  |
Total equity investments | 1,876 | 1,456
Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Total equity investments | 423 | 338
Total | 423 | 338
Recurring | Quoted Prices in Active Markets for Identical Instruments (Level 1) | Equity Investments |  |
Assets Measured on a Recurring Basis |  |
Total equity investments | 423 | 338
Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 161,135 | 165,991
Total equity investments | 0 | 0
Total | 161,135 | 165,991
Recurring | Significant Other Observable Inputs (Level 2) | Equity Investments |  |
Assets Measured on a Recurring Basis |  |
Total equity investments | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Total equity investments | 0 | 0
Total | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Equity Investments |  |
Assets Measured on a Recurring Basis |  |
Total equity investments | 0 | 0
Recurring | U.S. government agency obligations |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 18,703 | 18,313
Recurring | U.S. government agency obligations | Quoted Prices in Active Markets for Identical Instruments (Level 1) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Recurring | U.S. government agency obligations | Significant Other Observable Inputs (Level 2) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 18,703 | 18,313
Recurring | U.S. government agency obligations | Significant Unobservable Inputs (Level 3) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Recurring | Mortgage-backed securities |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 75,976 | 78,610
Recurring | Mortgage-backed securities | Quoted Prices in Active Markets for Identical Instruments (Level 1) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Recurring | Mortgage-backed securities | Significant Other Observable Inputs (Level 2) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 75,976 | 78,610
Recurring | Mortgage-backed securities | Significant Unobservable Inputs (Level 3) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Recurring | Corporate debt securities |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 40,253 | 40,251
Recurring | Corporate debt securities | Quoted Prices in Active Markets for Identical Instruments (Level 1) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Recurring | Corporate debt securities | Significant Other Observable Inputs (Level 2) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 40,253 | 40,251
Recurring | Corporate debt securities | Significant Unobservable Inputs (Level 3) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Recurring | Corporate asset-backed securities |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 26,203 | 28,817
Recurring | Corporate asset-backed securities | Quoted Prices in Active Markets for Identical Instruments (Level 1) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 0 | 0
Recurring | Corporate asset-backed securities | Significant Other Observable Inputs (Level 2) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | 26,203 | 28,817
Recurring | Corporate asset-backed securities | Significant Unobservable Inputs (Level 3) |  |
Assets Measured on a Recurring Basis |  |
Total investment securities | $ 0 | $ 0

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