Stockholders' Equity (Details Textual) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended
	Oct. 31, 2014	Dec. 31, 2012	Apr. 09, 2012
Class of Warrant or Right [Line Items]
Underwritten Public Offering, Proceeds from Units Issued	$ 9.6
Series A Warrants [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.89
Class A Warrant [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.60
Series B Warrants [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 0.85
Institutional Investor [Member] \| Series A Warrants [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 1.15
Institutional Investor [Member] \| Series B Warrants [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.85