Condensed Financial Information - Parent Corporation Only BALANCE SHEETS (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Balance Sheet Statements, Captions [Line Items]
Cash on deposit with subsidiary bank	$ 5,489	$ 7,396
Investment in subsidiaries	155	155
TOTAL ASSETS	1,294,863	1,222,857	$ 1,227,753
Subordinated notes	5,155	5,155
TOTAL LIABILITIES	1,171,309	1,100,823
Common stock	17,330	17,494
Capital surplus	44,155	44,892
Retained earnings	60,392	55,854
Accumulated other comprehensive income, net	1,677	3,794	232	$ 6,467
TOTAL SHAREHOLDERS' EQUITY	123,554	122,034	$ 115,073	$ 117,122
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,294,863	1,222,857
Middleburg Financial Corporation [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash on deposit with subsidiary bank	1,403	563
Investment in subsidiaries	125,900	124,242
Other assets	1,686	2,651
TOTAL ASSETS	128,989	127,456
Subordinated notes	5,155	5,155
Other liabilities	280	267
TOTAL LIABILITIES	5,435	5,422
Common stock	17,330	17,494
Capital surplus	44,155	44,892
Retained earnings	60,392	55,854
Accumulated other comprehensive income, net	1,677	3,794
TOTAL SHAREHOLDERS' EQUITY	123,554	122,034
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 128,989	$ 127,456