FAIR VALUE MEASUREMENT (Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Financial assets:
Interest bearing deposits with banks	$ 143,000	$ 598,000
Interest bearing time deposits with banks	0	735,000
Debt securities held to maturity	209,887,000	0
Restricted investment in bank stock	3,666,000	2,116,000
Financial liabilities:
Non-interest bearing deposits	199,131,000	182,022,000
Interest bearing deposits	512,381,000	526,425,000
Short-term borrowings	55,710,000	4,227,000
Long-term debt	20,000,000	20,000,000
Other interest bearing liabilities	1,011,000	1,568,000
Carrying Value [Member]
Financial assets:
Cash and due from banks	10,856,000	12,928,000
Interest bearing deposits with banks	143,000	598,000
Interest bearing time deposits with banks		735,000
Debt securities available for sale	73,536,000	336,548,000
Debt securities held to maturity	209,565,000
Restricted investment in bank stock	3,666,000	2,116,000
Loans, net of allowance for loan losses	480,485,000	414,795,000
Interest rate swaps, assets	268,000	541,000
Accrued interest receivable	2,124,000	1,814,000
Financial liabilities:
Non-interest bearing deposits	199,131,000	182,022,000
Interest bearing deposits	512,381,000	526,425,000
Securities sold under agreements to repurchase	7,585,000	4,227,000
Short-term borrowings	48,125,000
Long-term debt	20,000,000	20,000,000
Other interest bearing liabilities	1,011,000	1,568,000
Accrued interest payable	333,000	252,000
Off-balance sheet financial instruments:
Commitments to extend credit	0	0
Letters of credit	0	0
Fair Value [Member]
Financial assets:
Cash and due from banks	10,856,000	12,928,000
Interest bearing deposits with banks	143,000	598,000
Interest bearing time deposits with banks		735,000
Debt securities available for sale	73,536,000	336,548,000
Debt securities held to maturity	209,887,000
Loans, net of allowance for loan losses	467,667,000	414,984,000
Interest rate swaps, assets	268,000	541,000
Accrued interest receivable	2,124,000	1,814,000
Financial liabilities:
Non-interest bearing deposits	199,131,000	182,022,000
Interest bearing deposits	508,753,000	528,952,000
Short-term borrowings	48,122,000
Long-term debt	19,156,000	20,520,000
Other interest bearing liabilities	1,009,000	1,568,000
Accrued interest payable	333,000	252,000
Off-balance sheet financial instruments:
Commitments to extend credit	0	0
Letters of credit	$ 0	$ 0