CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (2,581,939)	$ (3,232,399)	$ 12,256	$ (4,703,250)
Other comprehensive (loss) income, net of taxes:
Foreign currency translation	(93,045)	183,858	(124,023)	45,388
Net unrealized gain on marketable securities	1,429	(3,900)	6,105	(3,282)
Net minimum pension liability	(5,733)	(754)	75	3,350
Total other comprehensive loss, net of taxes:	(97,349)	179,204	(117,843)	45,456
Total comprehensive loss	(2,679,288)	(3,053,195)	(105,587)	(4,657,794)
Less: Accrual of Series A redeemable convertible preferred stock dividends	190,786	186,904	568,476	560,712
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	149,969	125,915	430,943	361,822
Total comprehensive loss attributable to common stockholders	$ (3,020,043)	$ (3,366,014)	$ (1,105,006)	$ (5,580,328)