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Parent Company Financial Information - Condensed Income Statement (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2017
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |
Other expenses |  |  |  |  |  |  |  |  | $ (11,539) | $ (10,795)
Income before income tax benefit and equity in undistributed net income of subsidiaries | $ 365 | $ 631 | $ 433 | $ 283 | $ 565 | $ 512 | $ 401 | $ 346 | 1,713 | 1,824
Income tax benefit |  |  |  |  |  |  |  |  | (130) | (913)
NET INCOME | $ 307 | $ 542 | $ 478 | $ 255 | $ (152) | $ 411 | $ 338 | $ 316 | 1,583 | 911
Glen Burnie Bancorp |  |  |  |  |  |  |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |
Dividends and distributions from subsidiaries |  |  |  |  |  |  |  |  | 977 | 1,089
Other expenses |  |  |  |  |  |  |  |  | (140) | (115)
Income before income tax benefit and equity in undistributed net income of subsidiaries |  |  |  |  |  |  |  |  | 837 | 974
Income tax benefit |  |  |  |  |  |  |  |  | 38 | 45
Change in undistributed equity of subsidiaries |  |  |  |  |  |  |  |  | 708 | (108)
NET INCOME |  |  |  |  |  |  |  |  | $ 1,583 | $ 911

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