Basis of Presentation and Nature of Operations (Narrative) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($) Loan_Production_Offices Operation_centers branches	Sep. 30, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operation centers | Operation_centers	2
Number of LPOs | Loan_Production_Offices	5
Right-of-use assets	$ 8,521
Total lease liability	$ 8,607
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
OREO, losses reclassified to interest expense		$ 8,000
Waldrof [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of branches | branches	2
Leonardtown, La Plata [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of branches | branches	2