Basis of Presentation and Nature of Operations (Narrative) (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) Loan_Production_Offices Operation_centers branches	Jun. 30, 2018 USD ($)	Jan. 01, 2019 USD ($)
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		$ 9,729
Total lease liability		$ 9,797
Restatement Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
OREO, losses reclassified to interest expense	$ 8		$ 8,000
Restatement Adjustment [Member] | ASU 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets				$ 10,200
Total lease liability				$ 10,200
Maryland and Virginia [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of branches | branches		11
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
Fredericksburg, Virginia [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of branches | branches		1