Equity Financings and Warrants (Details Textual) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Equity financings and warrants (Textual) [Abstract]
Number of warrants outstanding	9,400,000
Class of warrant or rights expiration date earliest	2016-04
Class of warrant or rights expiration date latest	2020-01
Minimum
Equity financings and warrants (Textual) [Abstract]
Warrant price per share	$ 1.60
Maximum
Equity financings and warrants (Textual) [Abstract]
Warrant price per share	$ 116.89
Weighted Average
Equity financings and warrants (Textual) [Abstract]
Warrant price per share	$ 2.31
PIPE Transaction
Equity financings and warrants (Textual) [Abstract]
Aggregate common stock sold		356,430
Warrants available to purchase additional commons shares		249,501
Aggregate gross proceeds		$ 1,000,000
Proceeds from the issuance of common stock		805,000
Public Equity Offering Close Date		Jan. 25, 2013
Subscription agreement date		Jan. 22, 2013
Purchase price for common stock unit		$ 2.81
Warrant coverage ratio		0.70
Warrant price per share		$ 2.28
Closing bid price of the common stock		100.00%
Warrants were exercisable upon issuance, expiry year		7 years
Closing bid price date		Jan. 22, 2013
Registered Direct Offering
Equity financings and warrants (Textual) [Abstract]
Aggregate common stock sold	5,116,228	164,636
Warrants available to purchase additional commons shares	1,279,057	65,855
Aggregate gross proceeds	8,700,000	730,000
Proceeds from the issuance of common stock	7,900,000	616,000
Public Equity Offering Close Date	Feb. 07, 2014	Feb. 04, 2013
Subscription agreement date		Jan. 31, 2013
Purchase price for common stock unit	$ 1.70	$ 4.43
Warrant coverage ratio	0.25	0.40
Warrant price per share	$ 2.125	$ 4.13
Closing bid price of the common stock	125.00%
Warrants were exercisable upon issuance, expiry year	5 years	5 years
Closing bid price date	Feb. 03, 2014	Jan. 31, 2013
Public Offering | Series A Convertible Preferred Stock
Equity financings and warrants (Textual) [Abstract]
Aggregate common stock sold		125,000
Warrants available to purchase additional commons shares		6,250,000
Aggregate gross proceeds		20,000,000
Proceeds from the issuance of common stock		17,900,000
Purchase price for common stock unit		$ 160
Warrant coverage ratio		50
Warrant price per share		$ 1.60
Warrants were exercisable upon issuance, expiry year		5 years
Common stock shares issued upon conversion of each share of convertible preferred stock		100
Preferred stock liquidation preference per share		$ 0.001
Percentage of total number of shares of common stock then issued and outstanding limit on beneficial ownership		9.99%
Intrinsic value of embedded beneficial conversion feature		$ 2,000,000
Public Offering | Director and Chief Executive Officer
Equity financings and warrants (Textual) [Abstract]
Warrants available to purchase additional commons shares		39,050
Preferred Stock Purchased by Officer		781