Capital Requirements (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Consolidated [Member]
Total Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	$ 124,313	$ 119,479
Minimum Capital Requirement	62,577	62,640
Total Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	15.90%	15.30%
Minimum Capital Requirement, Ratio (in hundredths)	8.00%	8.00%
Tier 1 Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	114,490	109,634
Minimum Capital Requirement	31,289	31,320
Tier 1 Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	14.60%	14.00%
Minimum Capital Requirement, Ratio (in hundredths)	4.00%	4.00%
Tier 1 Capital (to Average Assets), Amount [Abstract]
Actual	114,490	109,634
Minimum Capital Requirement	48,550	48,477
Tier 1 Capital (to Average Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	9.40%	9.10%
Minimum Capital Requirement, Ratio (in hundredths)	4.00%	4.00%
Middleburg Bank [Member]
Total Capital (to Risk- Weighted Assets), Amount [Abstract]
Actual	120,015	115,411
Minimum Capital Requirement	62,417	62,430
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	78,022	78,038
Total Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	15.40%	14.80%
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	110,217	105,601
Minimum Capital Requirement	31,209	31,215
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	46,813	46,823
Tier 1 Capital (to Risk- Weighted Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	14.10%	13.50%
Minimum Capital Requirement, Ratio (in hundredths)	4.00%	4.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (in hundredths)	6.00%	6.00%
Tier 1 Capital (to Average Assets), Amount [Abstract]
Actual	110,217	105,601
Minimum Capital Requirement	48,484	48,399
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 60,605	$ 60,499
Tier 1 Capital (to Average Assets), Ratio [Abstract]
Actual, Ratio (in hundredths)	9.10%	8.70%
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%

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The amount of total capital as defined in the regulations.

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The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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Tier 1 Leverage Capital divided by average assets as defined in the regulations.

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Tier 1 Risk Based Capital as defined in the regulations.

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The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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