Parent Company Financial Information - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 15,241
Other assets	390	$ 388
Total assets	351,813	381,436
Stockholders' equity:
Common stock	2,883	2,865
Surplus	10,964	10,862
Retained earnings	23,859	23,579
Accumulated other comprehensive loss, net of benefits	(18,381)	(21,252)
Total stockholders' equity	19,325	16,054	$ 35,716
Total liabilities and stockholders' equity	351,813	381,436
Glen Burnie Bancorp
Assets
Cash and cash equivalents	88	77	$ 99
Investment in The Bank of Glen Burnie	19,227	15,975
Other assets	10	2
Total assets	19,325	16,054
Stockholders' equity:
Common stock	2,883	2,865
Surplus	10,964	10,862
Retained earnings	23,859	23,579
Accumulated other comprehensive loss, net of benefits	(18,381)	(21,252)
Total stockholders' equity	19,325	16,054
Total liabilities and stockholders' equity	$ 19,325	$ 16,054