Property and Equipment (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Property and equipment
Property and equipment, gross	$ 444,842		$ 444,842		$ 444,842
Less: accumulated depreciation and amortization	(436,299)		(436,299)		(428,779)
Property and equipment	8,543		8,543		16,063
Depreciation and amortization expense	2,507	1,478	7,520	5,881
Laboratory equipment
Property and equipment
Property and equipment, gross	368,542		368,542		368,542
Office equipment
Property and equipment
Property and equipment, gross	$ 76,300		$ 76,300		$ 76,300