Preferred Stock, Common Stock and Stockholders' Equity (Deficit) (Details)	0 Months Ended	9 Months Ended
	Jun. 13, 2013	Sep. 30, 2013	Jul. 02, 2013	Dec. 31, 2012
Preferred Stock, Common Stock and Stockholders' Equity (Deficit)
Reverse stock split ratio	0.67	0.67
Common Stock
Common stock, shares authorized		250,000,000	250,000,000	52,333,333
Shares of preferred stock that may be issued		32,742,929	10,000,000	32,742,929
Common stock
Common Stock
Common stock, shares authorized		250,000,000		52,333,333
Series II common stock
Common Stock
Common stock, shares authorized		2,333,333		2,333,333