Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary Of Stock Compensation Expense) (Details)

v2.4.0.6
Stock-Based Compensation (Summary Of Stock Compensation Expense) (Details) (USD $)
3 Months Ended 144 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share Based Compensation $ 371,951 $ 91,174 $ 6,180,567
Payroll [Member] | General And Administrative [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share Based Compensation 350,379 39,317 2,971,808
Payroll [Member] | Research And Development [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share Based Compensation 15,732 20,498 1,063,789
Consulting and other professional fees [Member] | General And Administrative [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share Based Compensation 3,893 23,222 814,348
Consulting and other professional fees [Member] | Research And Development [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share Based Compensation $ 1,947 $ 8,137 $ 1,330,622