Quarterly report pursuant to Section 13 or 15(d)

Convertible Notes and Warrant Liabilities (Details 3)

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Convertible Notes and Warrant Liabilities (Details 3) (USD $)
1 Months Ended 3 Months Ended 6 Months Ended 7 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended 3 Months Ended 7 Months Ended 9 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 1 Months Ended 3 Months Ended 7 Months Ended 9 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Feb. 22, 2011
Sep. 30, 2012
Sep. 30, 2012
Sep. 30, 2011
Jul. 02, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2010
Dec. 31, 2011
Feb. 22, 2011
Investor Warrants
Sep. 30, 2012
Investor Warrants
Sep. 30, 2012
Investor Warrants
Sep. 30, 2011
Investor Warrants
Sep. 30, 2012
Investor Warrants
Jul. 02, 2012
Investor Warrants
Dec. 31, 2011
Investor Warrants
Sep. 30, 2012
2012 Warrants
Sep. 30, 2012
2012 Warrants
Jul. 02, 2012
2012 Warrants
Sep. 30, 2012
2012 Warrants
Feb. 22, 2011
Convertible Notes
Sep. 30, 2012
Convertible Notes
Sep. 30, 2012
Convertible Notes
Sep. 30, 2012
Convertible Notes
Sep. 30, 2012
Convertible Notes
Jul. 31, 2012
Convertible Notes
Dec. 31, 2011
Convertible Notes
Sep. 30, 2011
Convertible Notes
Sep. 30, 2012
Convertible Notes
Second Tranche
Sep. 30, 2012
Convertible Notes
Second Tranche
Jul. 02, 2012
Convertible Notes
Second Tranche
Sep. 30, 2012
Convertible Notes
Second Tranche
Convertible Notes and Warrant Liabilities                                                                  
Initial carrying value                                           $ 3,208,000                   $ 417,000  
Derivative liability                     908,000 3,200,000 3,200,000   3,200,000     2,500,000 2,500,000 2,900,000 2,500,000 3,680,000 8,240,000 8,240,000 8,240,000 8,240,000       1,936,000 1,936,000 2,073,000 1,936,000
Charge to other income (expense)     (757,000) 376,000     (4,218,000) (1,840,000)         800,000   (1,600,000)       (1,917,000)   (1,917,000)     747,000   (2,715,000)         (1,503,000)   (1,503,000)
Debt discount to be amortized                                           792,000                   583,000  
Interest expense amortized     67,000       198,000                                                    
Changes in the Convertible Notes and Investor Warrants                                                                  
Allocation of initial proceeds 4,000,000       1,000,000           792,000                 583,000   3,208,000                   417,000  
Amortization of debt discount   215,000       158,000 215,000 158,000                             198,000   158,000         17,000 17,000   17,000
Fair value adjustment 585,000 3,761,000     3,973,000 2,127,000         116,000 1,600,000   756,000       (400,000)   2,317,000   469,000 2,715,000   1,371,000         (154,000)   1,656,000  
Total Liabilities 4,585,000 15,876,000 15,876,000 6,870,000 11,900,000 6,870,000 15,876,000 6,870,000   6,927,000                       3,677,000 8,240,000 8,240,000 8,240,000 8,240,000 5,327,000 5,327,000 5,206,000 1,936,000 1,936,000 2,073,000 1,936,000
Balance                     908,000 3,200,000 3,200,000 1,664,000 3,200,000 1,600,000 1,600,000 2,500,000 2,500,000 2,900,000 2,500,000                        
Financing costs                                                                  
Financing costs associated with convertible notes     80,000       80,000 530,000                                                  
Financing costs recorded in prepaid expenses and other current assets                 $ 135,000