CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net income (loss)	$ 1,738	$ (4,101)	$ (1,888)	$ (38,718)
Translation adjustment	(15)	(230)	(84)	(220)
Change in fair value of marketable security, net of income taxes	0	444	0	398
Comprehensive income (loss)	1,723	(3,887)	(1,972)	(38,540)
Less: noncontrolling interest's share	10	4	34	(28)
Comprehensive income (loss) attributable to Merge	$ 1,713	$ (3,891)	$ (2,006)	$ (38,512)