FAIR VALUE - Estimated fair values of the Company's financial instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financial assets - Carrying Amount
Cash and due from banks	$ 2,373	$ 2,605
Interest-bearing deposits	7,454	12,468
Federal funds sold	111	881
Debt securities	61,213	81,572
Investments in restricted stock	1,227	2,481
Ground rents	146	143
Loans, net	288,778	296,579
Accrued interest receivable	992	1,198
Cash value of life insurance	7,940	7,860
Financial liabilities - Carrying Amount
Deposits	320,178	322,453
Short-term borrowings	20,000	55,000
Accrued interest payable	123	152
Unrecognized financial instruments:
Commitments to extend credit	28,818	19,905
Standby letters of credit	1,059	1,059
Financial assets - Fair Value
Cash and due from banks	2,373	2,605
Interest-bearing deposits	7,454	12,468
Federal funds sold	111	881
Investment securities	61,213	81,572
Investments in restricted stock	1,227	2,481
Ground rents	146	143
Loans, less allowance for credit losses	286,809	293,175
Accrued interest receivable	992	1,198
Cash value of life insurance	7,940	7,860
Financial liabilities - Fair Value
Deposits	318,571	307,271
Short-term borrowings	20,012	55,851
Accrued interest payable	123	152
Unrecognized financial instruments:
Commitments to extend credit	28,818	19,905
Standby letters of credit	$ 1,059	$ 1,059