Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net income	$ 1,649	$ 2,499	$ 5,264		$ 5,922
Other comprehensive income (loss), net of tax:
Unrealized holding gains (losses) arising during the period (net of tax of $902, $673, $2,870 and $1,421 respectively for the periods presented)	(1,748)	1,307	(5,572)		2,758
Reclassification adjustment for gains included in net income (net of tax of $8, $56, $135, and $154 respectively for the periods presented)	(15)	(108)	(262)		(298)
Unrealized gain (loss) on interest rate swap (net of tax of $2, $18, $103, and $63, respectively)	(4)	(35)	200		(122)
Total other comprehensive income (loss)	(1,767)	1,164	(5,634)	[1]	2,338	[1]
Total comprehensive income (loss)	(118)	3,663	(370)		8,260
Comprehensive income attributable to non-controlling interest	(38)	(785)	(233)		(856)
Comprehensive income (loss) attributable to Middleburg Financial Corporation	$ (156)	$ 2,878	$ (603)		$ 7,404

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