STATEMENTS OF CASH FLOWS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities
Net income	$ 6,154	$ 6,486	$ 4,960
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Amortization	171	171	171
Share-based compensation	492	440	471
Increase in other assets	293	(4,955)	(3,730)
Increase (decrease) in other liabilities	1,746	1,950	(426)
Net cash provided by (used in) operating activities	67,091	28,356	(21,497)
Cash Flows from Investing Activities
Net cash (used in) investing activities	(42,969)	(56,211)	(70,604)
Cash Flows from Financing Activities
Net proceeds from issuance of common stock	39	0	0
Cash dividends paid on common stock	(1,700)	(1,408)	(1,396)
Net cash (used in) provided by financing activities	(11,194)	31,000	78,647
Increase (decrease) in cash and and cash equivalents	12,928	3,145	(13,454)
Cash and cash equivalents at beginning of year	54,415	51,270	64,724
Cash and cash equivalents at end of year	67,343	54,415	51,270
Middleburg Financial Corporation [Member]
Cash Flows from Operating Activities
Net income	6,154	6,486	4,960
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Amortization	171	171	171
Equity in undistributed earnings of subsidiaries	(4,682)	(5,672)	(5,123)
Share-based compensation	492	440	471
Increase in other assets	(87)	(112)	(508)
Increase (decrease) in other liabilities	2	(2)	(7)
Net cash provided by (used in) operating activities	2,050	1,311	(36)
Cash Flows from Investing Activities
Investment in subsidiary bank	0	0	0
Net cash (used in) investing activities	0	0	0
Cash Flows from Financing Activities
Net proceeds from issuance of common stock	39	0	0
Cash dividends paid on common stock	(1,700)	(1,408)	(1,396)
Repurchase of stock	(103)	(43)	(15)
Net cash (used in) provided by financing activities	(1,764)	(1,451)	(1,411)
Increase (decrease) in cash and and cash equivalents	286	(140)	(1,447)
Cash and cash equivalents at beginning of year	360	500	1,947
Cash and cash equivalents at end of year	$ 646	$ 360	$ 500

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.