Stockholders' Equity (Details 3) (Restricted Stock [Member], USD $)	3 Months Ended
	Mar. 31, 2015
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Shares, Outstanding, Beginning Balance	3,208,410
Restricted Shares, Granted	43,167
Restricted Shares, Canceled	0
Restricted Shares, Vested	(45,667)
Restricted Shares, Expired/Forfeited	(5,375)
Restricted Shares, Outstanding, Ending Balance	3,200,535
Weighted-Average Exercise Price, Outstanding, Beginning Balance	$ 4.46
Weighted-Average Grant Date Fair Value, Granted	$ 9
Weighted-Average Grant Date Fair Value, Canceled	$ 0
Weighted-Average Grant Date Fair Value, Vested	$ 6.94
Weighted-Average Grant Date Fair Value, Expired/Forfeited	$ 6.23
Weighted-Average Exercise Price, Outstanding, Ending Balance	$ 4.48