Condensed Balance Sheet (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Assets        
Other assets $ 1,778,336 $ 668,392 $ 694,142  
Total assets 390,580,191 394,629,508 377,193,574  
Liabilities and Stockholders' Equity        
Other Liabilities 1,172,993 1,605,770 1,503,797  
Dividends payable   276,096 274,737  
Total liabilities 356,404,378 360,798,981 345,610,413  
Stockholders' equity:        
Common stock 2,773,361 2,760,964 2,747,370  
Surplus 9,986,064 9,854,119 9,713,335  
Retained earnings 21,718,122 21,112,714 20,300,531  
Accumulated other comprehensive income (loss), net of benefits (301,734) 102,730 (1,178,075)  
Total stockholders' equity 34,175,813 33,830,527 31,583,161 $ 33,587,665
Total liabilities and stockholders' equity 390,580,191 394,629,508 377,193,574  
Parent Company        
Assets        
Cash 184,366 283,796 296,245  
Due from subsidiaries 6,211 2,095 2,067  
Other assets 8,000 8,533 11,957  
Total assets 34,185,813 34,106,623 31,857,898  
Liabilities and Stockholders' Equity        
Other Liabilities 10,000      
Dividends payable   276,096 274,737  
Total liabilities 10,000 276,096 274,737  
Stockholders' equity:        
Common stock 2,773,361 2,760,964 2,747,370  
Surplus 9,986,064 9,854,119 9,713,335  
Retained earnings 21,718,122 21,112,714 20,300,531  
Accumulated other comprehensive income (loss), net of benefits (301,734) 102,730 (1,178,075)  
Total stockholders' equity 34,175,813 33,830,527 31,583,161  
Total liabilities and stockholders' equity 34,185,813 34,106,623 31,857,898  
Parent Company | Bank Of Glen Burnie        
Assets        
Investment 33,882,666 33,557,329 31,292,459  
Parent Company | GBB Properties, Inc.        
Assets        
Investment $ 104,570 $ 254,870 $ 255,170