Stockholders' Equity (Details)	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Warrant Shares
Outstanding, December 31, 2014	21,212,813
Number of warrants exercised	(2,500)
Warrants issued to vendor	104,315
Warrants issued to Series D Preferred holders	3,437,500
Expired warrants	(86,345)
Outstanding, September 30, 2015	24,665,783
Weighted average exercise price
Outstanding, December 31, 2014 | $ / shares	$ 1.19
Exercised warrants | $ / shares	0.28
Warrants issued to vendor | $ / shares	0.68
Warrants issued to Series D Preferred holders | $ / shares	0.40
Expired warrants | $ / shares	37.6
Outstanding, September 30, 2015 | $ / shares	$ 0.95
Expiring in 2015	199,000
Expiring in 2016
Expiring in 2017	7,235,622
Expiring thereafter	17,231,161