CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net loss	$ (3,785,701)	$ (12,714,951)	$ (8,184,121)
Unrealized (loss) gain on marketable securities	(49,189)	265,606	(725,911)
Comprehensive loss	$ (3,834,890)	$ (12,449,345)	$ (8,910,032)