CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (3,232,399)	$ (2,219,663)	$ (4,703,250)	$ (11,807,401)
Other comprehensive income (loss), net of taxes:
Foreign currency translation	183,858	(932)	45,388	13,858
Net unrealized loss on marketable securities	(3,900)	(2,307)	(3,282)	(3,757)
Net minimum pension liability	(754)	2,965	3,350	2,019
Total other comprehensive income (loss), net of taxes:	179,204	(274)	45,456	12,120
Total comprehensive loss	(3,053,195)	(2,219,937)	(4,657,794)	(11,795,281)
Less: Accrual of Series A redeemable convertible preferred stock dividends	186,904	28,875	560,712	28,875
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	125,915	17,061	361,822	17,061
Total comprehensive loss attributable to common stockholders	$ (3,366,014)	$ (2,265,873)	$ (5,580,328)	$ (11,841,217)