Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Mar. 31, 2013	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Warrant [Member]	Jun. 30, 2013 Minimum [Member]	Jun. 30, 2013 Maximum [Member]
Equity (Additional Textual) [Abstract]
Stock option to purchase		5,654,842
Exercise prices per share					$ 0.25	$ 3.98
Warrants to purchase common stock, shares		48,888,215	45,280,280	1,358,333
Warrants, exercise price					$ 0.75	$ 1.50
Equity (Textual) [Abstract]
Sale of Common stock	3,322,500
Share price	$ 3.00
Gross proceeds	$ 10.0
Net proceeds from public offering	9.2
Underwriting fees and offering costs	$ 0.8