Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net income	$ 2,355	$ 2,190	$ 3,615		$ 3,423
Other comprehensive income (loss), net of tax:
Unrealized holding gains (losses) arising during the period (net of tax of $1,861, $389, $1,972 and $748 respectively for the periods presented)	(3,610)	756	(3,825)		1,451
Reclassification adjustment for gains included in net income (net of tax of $111, $50, $127, and $98 respectively for the periods presented)	(215)	(98)	(246)		(190)
Unrealized gain (loss) on interest rate swap (net of tax of $85, $72, $105, and $45 respectively for the periods presented)	165	(140)	204		(87)
Total other comprehensive income (loss)	(3,660)	518	(3,867)	[1]	1,174	[1]
Total comprehensive income (loss)	(1,305)	2,708	(252)		4,597
Comprehensive income attributable to non-controlling interest	(262)	(421)	(195)		(72)
Comprehensive income (loss) attributable to Middleburg Financial Corporation	$ (1,567)	$ 2,287	$ (447)		$ 4,525

[1] All amounts shown are net of applicable income taxes using an income tax rate of 34%.