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INVESTMENT SECURITIES - Equity and Other Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Equity and Other Securities [Abstract] |  |
Amortized cost | $ 43,494 | $ 43,917
Gross unrealized gains | 964 | 962
Gross unrealized losses | 0 | 0
Equity and other securities (cost of $43,494 and $43,917, respectively) | 44,458 | 44,879
Equity Securities, at Fair Value [Abstract] |  |
Amortized cost | 251 | 251
Gross unrealized gains | 214 | 212
Gross unrealized losses | 0 | 0
Fair value | 465 | 463
Federal Home Loan Bank Common Stock [Member] |  |
Other Equity Securities, at Adjusted Cost [Abstract] |  |
Amortized cost | 7,181 | 7,188
Gross unrealized gains | 0 | 0
Gross unrealized losses | 0 | 0
Fair value | 7,181 | 7,188
Federal Reserve Bank Stock [Member] |  |
Other Equity Securities, at Adjusted Cost [Abstract] |  |
Amortized cost | 33,568 | 33,916
Gross unrealized gains | 0 | 0
Gross unrealized losses | 0 | 0
Fair value | 33,568 | 33,916
Other Equity Securities [Member] |  |
Other Equity Securities, at Adjusted Cost [Abstract] |  |
Amortized cost | 2,494 | 2,562
Gross unrealized gains | 750 | 750
Gross unrealized losses | 0 | 0
Fair value | $ 3,244 | $ 3,312

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