Stockholders' Equity (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Par Value	$ 0.0001	$ 0.0001
Series A Preferred Stock [Member]
Number of Shares Issued and Outstanding
Par Value	$ 0.0001
Conversion Ratio
Series B Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding		1
Par Value	$ 0.0001
Conversion Ratio	1
Series C Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding	1	1
Par Value	$ 0.0001
Conversion Ratio	1
Series D Preferred Stock [Member]
Number of Shares Issued and Outstanding	4,725	1,227,582
Par Value	$ 0.0001
Conversion Ratio	10
Series D-1 Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding	834	59,265
Par Value	$ 0.0001
Conversion Ratio	10
Series E Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding
Par Value	$ 0.0001
Conversion Ratio	1
Series F Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding
Par Value	$ 0.0001
Conversion Ratio	1
Series F-1 Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding		156,250
Par Value	$ 0.0001
Conversion Ratio	1
Series H Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding	439,043	459,043
Par Value	$ 0.0001
Conversion Ratio	10
Series I Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding	35,541	119,760
Par Value	$ 0.0001
Conversion Ratio	20
Series J Convertible Preferred Stock [Member]
Number of Shares Issued and Outstanding
Par Value	$ 0.0001
Conversion Ratio	1