Parent Company Financial Information - Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Other assets	$ 556	$ 583
Total Assets	413,046	389,450
Liabilities and Stockholders' Equity
Total Liabilities	378,995	355,408
STOCKHOLDERS' EQUITY
Common stock	2,814	2,801
Surplus	10,401	10,267
Retained earnings	22,066	21,605
Accumulated other comprehensive income (loss), net of benefits	(1,230)	(631)
Total Stockholders' Equity	34,051	34,042	$ 33,814
Total Liabilities and Stockholders' Equity	413,046	389,450
Glen Burnie Bancorp
ASSETS
Cash and cash equivalents	135	233	$ 169
Investment	33,893	33,785
Due from subsidiaries		1
Other assets	2	4
Total Assets	34,051	34,044
Liabilities and Stockholders' Equity
Other liabilities		1
Total Liabilities		1
STOCKHOLDERS' EQUITY
Common stock	2,814	2,801
Surplus	10,401	10,267
Retained earnings	22,066	21,606
Accumulated other comprehensive income (loss), net of benefits	(1,230)	(631)
Total Stockholders' Equity	34,051	34,043
Total Liabilities and Stockholders' Equity	34,051	34,044
Glen Burnie Bancorp | Gbb Properties Inc
ASSETS
Investment	$ 21	$ 21