CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (1,976,173)	$ (2,581,939)	$ (9,807,667)	$ 12,256
Other comprehensive income (loss), net of applicable taxes:
Foreign currency translation	59,527	(93,045)	(502,049)	(124,023)
Net unrealized (loss) gain on marketable securities	(279)	1,429	3,477	6,105
Net minimum pension liability	3,874	(5,733)	7,728	75
Total other comprehensive income (loss), net of applicable taxes:	63,122	(97,349)	(490,844)	(117,843)
Total comprehensive loss	(1,913,051)	(2,679,288)	(10,298,511)	(105,587)
Less: Accrual of Series A redeemable convertible preferred stock dividends	194,012	190,786	581,986	568,476
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	178,619	149,969	513,269	430,943
Total comprehensive loss attributable to common stockholders	$ (2,285,682)	$ (3,020,043)	$ (11,393,766)	$ (1,105,006)