Quarterly report pursuant to Section 13 or 15(d)

Stock Warrants (Narrative) (Details)

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Stock Warrants (Narrative) (Details) (USD $)
9 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Sep. 30, 2013
Minimum [Member]
Sep. 30, 2013
Maximum [Member]
Sep. 30, 2013
Weighted Average [Member]
Jun. 30, 2013
Series HH Warrants [Member]
Jun. 30, 2013
Five Year Series II Warrants [Member]
Jun. 30, 2013
Five Year Series II Warrants [Member]
Maximum [Member]
Sep. 30, 2013
Three Year Series JJ Warrants [Member]
Sep. 30, 2013
Three Year Series JJ Warrants [Member]
Minimum [Member]
Sep. 30, 2013
Three Year Series JJ Warrants [Member]
Maximum [Member]
Jun. 30, 2013
General Electric Capital Corporation [Member]
Series HH Warrants [Member]
Jun. 25, 2013
General Electric Capital Corporation [Member]
Series HH Warrants [Member]
Sep. 30, 2013
Platinum Montaur Life Sciences, LLC Credit Facility [Member]
Mar. 31, 2013
Platinum Montaur Life Sciences, LLC Credit Facility [Member]
Series X Warrants [Member]
Sep. 30, 2013
Platinum Montaur Life Sciences, LLC Credit Facility [Member]
Series X Warrants and Series AA Warrants [Member]
Jun. 30, 2013
Platinum Montaur Life Sciences, LLC Credit Facility [Member]
Series X Warrants and Series AA Warrants [Member]
Jun. 30, 2013
Preferred Stock [Member]
Sep. 30, 2013
Preferred Stock [Member]
Jun. 30, 2013
Common Stock [Member]
Sep. 30, 2013
Common Stock [Member]
Class of Warrant or Right [Line Items]                                            
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised                               3,000,000            
Issued stock upon exercise of warrants, shares                               3,000,000            
Proceeds from warrant exercises                               $ 1,380,000            
Series B preferred stock issued, shares                                     2,364.9 2,364.9    
Number of common shares underlying Series B Preferred Stock                                 7,733,223 7,733,223        
Shares conversion, number of common stock equivalent to each preferred stock                                         3,270 3,270
Principal payments on notes payable 5,982,156 620,480                         4,781,333              
Warrants outstanding 4,542,764                                          
Exercise price of warrant issued       1.97 3.83 3.39     3.04 3.83 2.00 3.83 2.49 2.49                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights             301,205 275,000   3,169,015 2,100,000 3,800,000   301,205                
Five Year II Warrants               5 years                            
Derivative liabilities related to warrants $ 7,675,446   $ 0