Parent Company Financial Information - Statements of Income (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Statements of Income
Other expenses									$ (11,340,000)	$ (10,952,000)
Income before income tax benefit and equity in undistributed net income of subsidiary	$ 994,000	$ 395,000	$ 345,000	$ 251,000	$ 693,000	$ 1,131,000	$ 570,000	$ 699,000	1,985,000	3,093,000
Income tax benefit									(240,000)	(577,000)
NET INCOME	$ 830,000	$ 375,000	$ 309,000	$ 231,000	$ 555,000	$ 888,000	$ 479,000	$ 594,000	1,745,182	2,516,387
Glen Burnie Bancorp
Statements of Income
Dividends and distributions from subsidiary									1,210,000	1,200,000
Other expenses									(243,000)	(245,000)
Income before income tax benefit and equity in undistributed net income of subsidiary									967,000	955,000
Income tax benefit									39,000	44,000
Change in undistributed equity of subsidiary									739,000	1,517,000
NET INCOME									$ 1,745,000	$ 2,516,000