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Equity Financings and Warrants (Details) (USD $)
 9 Months Ended
Sep. 30, 2013
Equity financings and warrants (Textual) [Abstract]  
Number of warrants outstanding $ 8,200,000
Weighted Average
  
Equity financings and warrants (Textual) [Abstract]  
Warrant price per share 2.53
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
PIPE Transaction
  
Equity financings and warrants (Textual) [Abstract]  
Equity Subscription Date Jan. 22, 2013
Shares issued 356,430
Additional shares that may be purchased 249,501
Aggregate gross proceeds 1,000,000
Net proceeds from the issuance of stock 805,000
Equity issuance close date Jan. 25, 2013
Shares of common stock purchasable for each warrant sold 0.70
Equity issuance per share amount $ 2.81
Expiration period of warrants exercise rights 7 years
Warrant price per share 2.28
Warrants exercise price as a percentage of closing bid price 100.00%
Closing bid price date Jan. 22, 2013
Effective date of registration statement for resale of shares sold in private placements Feb. 14, 2013
Registered Direct Offering
  
Equity financings and warrants (Textual) [Abstract]  
Equity Subscription Date Jan. 31, 2013
Shares issued 164,636
Additional shares that may be purchased 65,855
Aggregate gross proceeds 730,000
Net proceeds from the issuance of stock 616,000
Equity issuance close date Feb. 04, 2013
Shares of common stock purchasable for each warrant sold 0.40
Equity issuance per share amount $ 4.43
Expiration period of warrants exercise rights 5 years
Warrant price per share 4.13
Closing bid price date Jan. 31, 2013
Effective date of filing for securities sold in offering Feb. 01, 2013
Public Offering
  
Equity financings and warrants (Textual) [Abstract]  
Additional shares that may be purchased 6,250,000
Net proceeds from the issuance of stock 17,900,000
Equity issuance close date Jun. 04, 2013
Expiration period of warrants exercise rights 5 years
Warrant price per share 1.60
Common stock shares issued upon conversion of each share of convertible preferred stock 100
Maximum limit on percentage of ownership in common stock 9.99%
Preferred stock liquidation preference per share $ 0.001
Common Stock, Shares, Issued for Preferred Stock 50
Intrinsic value of embedded beneficial conversion feature 2,000,000
Public Offering | Preferred Stock
  
Equity financings and warrants (Textual) [Abstract]  
Number of shares of preferred stock converted in to common stock 100,098
Public Offering | Common Stock
  
Equity financings and warrants (Textual) [Abstract]  
Number of shares of common stock issued in conversion of preferred stock 10,009,800
Public Offering | Series A Convertible Preferred Stock
  
Equity financings and warrants (Textual) [Abstract]  
Shares issued 125,000
Aggregate gross proceeds $ 20,000,000
Equity issuance per share amount $ 160
Public Offering | Stock Converted On October Two Thousand Thirteen | Preferred Stock
  
Equity financings and warrants (Textual) [Abstract]  
Number of shares of preferred stock converted in to common stock 24,802
Public Offering | Stock Converted On October Two Thousand Thirteen | Common Stock
  
Equity financings and warrants (Textual) [Abstract]  
Number of shares of common stock issued in conversion of preferred stock 2,480,200
Director And Chief Executive Officer | Public Offering
  
Equity financings and warrants (Textual) [Abstract]  
Additional shares that may be purchased 39,050
Preferred Stock Purchased by Officer 781