CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 7,486	$ 6,163	$ 7,990
Other comprehensive income (loss), net of tax:
Unrealized holding gains (losses) arising during the period, net of tax of ($1,979), $3,212, and ($1,511), respectively	3,841	(6,234)	2,932
Reclassification adjustment for gains included in net income, net of tax of $63, $142, and $151, respectively	(123)	(276)	(294)
Unrealized gain (loss) on interest rate swap, net of tax of $82, ($142), and $50, respectively	(160)	275	(97)
Reclassification adjustment for loss on interest rate swap ineffectiveness included in net income, net of tax of ($2) for 2014	4	0	0
Total other comprehensive income (loss)	3,562	(6,235)	2,541
Total comprehensive income (loss)	11,048	(72)	10,531
Comprehensive loss (income) attributable to non-controlling interest	98	(9)	(1,504)
Comprehensive income (loss) attributable to Middleburg Financial Corporation	$ 11,146	$ (81)	$ 9,027