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IINVESTMENT SECURITIES - Additional information (Details) | 12 Months Ended
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Dec. 31, 2022 USD ($) position | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) item
INVESTMENT SECURITIES |  |  |
Gross investment losses | $ 5,000 |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax | 0 | $ 18,000 | $ (66,000)
Investment Securities: |  |  |
Proceeds from sales of investment securities - available for sale | 1,519,000 | 960,000 |
Gross investment gains | 5,000 | 84,000 |
Gross investment losses | 5,000 |  |
Book value of securities available for sale and held to maturity | $ 134,002,000 | 122,574,000 |
Number of positions | position | 426 |  |
Premium percentage on mortgage backed securities purchased | 100.90% |  |
Consolidated investment securities portfolio modified, years | 4 years 8 months 1 day |  |
Number of investment | item |  |  | 0
Realized gain on equity securities |  | 36,000 | $ 2,000
Unrealized gain on equity securities |  | 7,000 | 3,000
Available-for-sale Securities, Equity Securities | $ 502,000 | $ 526,000 |
Realized loss on equity securities | 9,000 |  |
Unrealized loss on equity securities | $ 13,000 |  |
U.S. Agency |  |  |
Investment Securities: |  |  |
Available For Sale Securities Debt Maturities Weighted Average Maturity Term | 5 years 7 months 13 days |  |
Weighted Average Expected Maturity For Held To Maturity Securities | 7 years 6 months 25 days |  |
U.S. Agency mortgage-backed securities |  |  |
Investment Securities: |  |  |
Available For Sale Securities Debt Maturities Weighted Average Maturity Term | 6 years 11 months 26 days |  |
Weighted Average Expected Maturity For Held To Maturity Securities | 7 years 4 months 20 days |  |
Corporate bonds. |  |  |
Investment Securities: |  |  |
Available For Sale Securities Debt Maturities Weighted Average Maturity Term | 4 years 2 months 4 days |  |
Weighted Average Expected Maturity For Held To Maturity Securities | 2 years 11 months 19 days |  |
Municipal |  |  |
Investment Securities: |  |  |
Available For Sale Securities Debt Maturities Weighted Average Maturity Term | 4 years 21 days |  |
Weighted Average Expected Maturity For Held To Maturity Securities | 5 years 4 months 13 days |  |
Standard & Poor's, AAA Rating |  |  |
INVESTMENT SECURITIES |  |  |
Portfolio rated | 52.50% | 47.10% |
Securities rated below A |  |  |
INVESTMENT SECURITIES |  |  |
Portfolio rated | 14.70% |  |
Deferred Compensation, Share-based Payments | Assets Held With Rabbi Trust |  |  |
Investment Securities: |  |  |
Available-for-sale Securities, Equity Securities | $ 502,000 | $ 526,000 | $ 443,000

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