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SECURITIES - Securities Held to Maturity (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Amortized cost and estimated fair value of securities held to maturity [Abstract] |  |
Securities held to maturity | $ 3,047 | $ 3,115
Unrecognized Gains | 46 | 24
Unrecognized Losses | 0 | 0
Securities held to maturity | 3,093 | 3,139
Amortized Cost [Abstract] |  |
Within one year | 609 |
After one, but within five years | 2,438 |
After five, but within ten years | 0 |
After ten years | 0 |
Total | 3,047 |
Securities held to maturity | 3,047 | 3,115
Fair Value [Abstract] |  |
Within one year | 613 |
After one, but within five years | 2,480 |
After five, but within ten years | 0 |
After ten years | 0 |
Total | 3,093 |
Securities held to maturity | 3,093 | 3,139
Mortgage-backed securities, residential |  |
Amortized Cost [Abstract] |  |
Without single maturity date | 0 |
Fair Value [Abstract] |  |
Without single maturity date | 0 |
Obligations of states and political subdivisions |  |
Amortized cost and estimated fair value of securities held to maturity [Abstract] |  |
Securities held to maturity | 409 | 1,045
Unrecognized Gains | 0 | 0
Unrecognized Losses | 0 | 0
Securities held to maturity | 409 | 1,045
Amortized Cost [Abstract] |  |
Securities held to maturity | 409 | 1,045
Fair Value [Abstract] |  |
Securities held to maturity | 409 | 1,045
Time deposits with other financial institutions |  |
Amortized cost and estimated fair value of securities held to maturity [Abstract] |  |
Securities held to maturity | 2,638 | 2,070
Unrecognized Gains | 46 | 24
Unrecognized Losses | 0 | 0
Securities held to maturity | 2,684 | 2,094
Amortized Cost [Abstract] |  |
Securities held to maturity | 2,638 | 2,070
Fair Value [Abstract] |  |
Securities held to maturity | 2,684 | $ 2,094
SBA loan pools |  |
Amortized Cost [Abstract] |  |
Without single maturity date | 0 |
Fair Value [Abstract] |  |
Without single maturity date | $ 0 |

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