FAIR VALUE - Estimated fair values of the Company's financial instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial assets: Carrying Amount
Cash and due from banks	$ 2,380	$ 2,035
Interest-bearing deposits in other financial institutions	11,970	22,680
Federal funds sold	172	5,377
Investment securities available for sale, at fair value	142,705	144,133
Investments in restricted stock	980	221
Ground rents	130	131
Loans, less allowance for credit losses	172,702	184,278
Accrued interest receivable	1,373	1,159
Cash value of life insurance	8,614	8,493
Financial liabilities: Carrying Amount
Deposits	314,841	362,947
Short-term borrowings	25,000
Accrued interest payable	225	9
Unrecognized financial instruments: Carrying Amount
Commitments to extend credit	30,536	30,718
Standby letters of credit	45	45
Financial assets - Fair Value
Cash and due from banks	2,380	2,035
Interest-bearing deposits in other financial institutions	11,970	22,680
Federal funds sold	172	5,377
Investment securities available for sale, at fair value	142,705	144,133
Investments in restricted stock	980	221
Ground rents	130	131
Loans, less allowance for credit losses	160,294	177,254
Accrued interest receivable	1,373	1,159
Cash value of life insurance	8,614	8,493
Financial liabilities - Fair Value
Deposits	256,126	299,773
Short-term borrowings	24,988
Accrued interest payable	225	9
Unrecognized financial instruments: Fair Value
Commitments to extend credit	30,536	30,718
Standby letters of credit	$ 45	$ 45