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BORROWED FUNDS - Maturities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Maturities of Long-term Debt [Abstract]    
2025 $ 3,000  
Thereafter 7,000  
Total 10,000 $ 10,000
Debt instrument maximum borrowing capacity 50,500 54,700
Loans pledged as security through blanket floating lien 76,800 78,700
Unsecured federal funds master purchase agreement with first national bankers bank $ 17,800 $ 17,800