Capital Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Consolidated [Member]
Total Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	$ 132,481	$ 128,971
Minimum Capital Requirement	$ 60,495	$ 60,857
Total Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	17.50%	17.00%
Minimum Capital Requirement, Ratio (in hundredths)	8.00%	8.00%
Tier 1 Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	$ 123,008	$ 119,433
Minimum Capital Requirement	$ 45,371	$ 30,428
Tier 1 Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	16.30%	15.70%
Minimum Capital Requirement, Ratio (in hundredths)	6.00%	4.00%
Tier 1 Common Equity Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	$ 118,008
Minimum Capital Requirement	$ 34,028
Tier 1 Common Equity Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	15.60%
Minimum Capital Requirement, Ratio (in hundredths)	4.50%
Tier 1 Capital (to Average Assets), Amount [Abstract]
Actual	$ 123,008	$ 119,433
Minimum Capital Requirement	$ 51,301	$ 48,232
Tier 1 Capital (to Average Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	9.60%	9.90%
Minimum Capital Requirement, Ratio (in hundredths)	4.00%	4.00%
Middleburg Bank [Member]
Total Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	$ 127,418	$ 123,801
Minimum Capital Requirement	60,055	60,660
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 75,068	$ 75,825
Total Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	17.00%	16.30%
Minimum Capital Requirement, Ratio (in hundredths)	8.00%	8.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (in hundredths)	10.00%	10.00%
Tier 1 Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	$ 118,013	$ 114,293
Minimum Capital Requirement	45,041	30,330
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 60,055	$ 45,495
Tier 1 Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	15.70%	15.10%
Minimum Capital Requirement, Ratio (in hundredths)	6.00%	4.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (in hundredths)	8.00%	6.00%
Tier 1 Common Equity Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	$ 118,013
Minimum Capital Requirement	33,781
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 48,794
Tier 1 Common Equity Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	15.70%
Minimum Capital Requirement, Ratio (in hundredths)	4.50%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (in hundredths)	6.50%
Tier 1 Capital (to Average Assets), Amount [Abstract]
Actual	$ 118,013	$ 114,293
Minimum Capital Requirement	51,067	48,141
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 63,834	$ 60,176
Tier 1 Capital (to Average Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	9.20%	9.50%
Minimum Capital Requirement, Ratio (in hundredths)	4.00%	4.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (in hundredths)	5.00%	5.00%