CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement of Comprehensive Income [Abstract]
Net Loss	$ (5,207,293)	$ (6,620,586)	$ (9,587,738)	$ (9,069,994)
Other comprehensive income (loss), net of taxes (benefits):
Foreign currency translation	(19,737)	(34,261)	14,790	(163,860)
Net unrealized gains on marketable securities	(5,457)	13,513	(1,450)	58,357
Net minimum pension liability	3,612	1,669	(946)	7,120
Total other comprehensive income (loss), net of taxes (benefits):	(21,582)	(19,079)	12,394	(98,383)
Total comprehensive loss, net	$ (5,228,875)	$ (6,639,665)	$ (9,575,344)	$ (9,168,377)