Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statement of Stockholders' Equity

v2.4.0.8
Consolidated Statement of Stockholders' Equity (USD $)
Total
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Balance at Dec. 31, 2012 $ (1,405,376) $ 7 $ 113,019 $ 273,039,442 $ (274,557,844)
Balance, shares at Dec. 31, 2012 113,018,772   113,018,772    
Balance, shares at Dec. 31, 2012   6,938      
Issued stock in connection with public offerings, net 38,132,478   14,205 38,118,273  
Issued stock in connection with public offerings, net, shares     14,205,770    
Issued stock upon exercise of stock options, net (9,161)   40 (9,201)  
Issued stock upon exercise of stock options, net, shares     39,649    
Issued restricted stock 61   61    
Issued restricted stock, shares     61,250    
Canceled stock to pay employee tax obligations (610,556)   (194) (610,362)  
Canceled stock to pay employee tax obligations, shares     (194,077)    
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures (29)   (29)    
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited     (29,250)    
Issued stock upon exercise of warrants 6,161,332 2 3,000 6,158,330  
Issued stock upon exercise of warrants, shares   2,365 3,000,000    
Issued stock to 401(k) plan 66,777   22 66,755  
Issued stock to 401(k) plan, shares 22,126   22,126    
Conversion of Series B preferred stock to common stock   (1,291)      
Conversion of Series B preferred stock to common stock, shares   (1)      
Stock Issued During Period, Shares, Conversion of Convertible Securities     4,221,243    
Stock Issued During Period, Value, Conversion of Convertible Securities 0   4,221 (4,220)  
Issued warrants in connection with debt issuance 967,115     967,115  
Issued warrants in connection with public offering (7,686,046)     (7,686,046)  
Stock compensation expense 2,193,715     2,193,715  
Net loss (28,947,577)       (28,947,577)
Balance at Sep. 30, 2013 $ 8,862,733 $ 8 $ 134,345 $ 312,233,801 $ (303,505,421)
Balance, shares at Sep. 30, 2013 134,345,483   134,345,483    
Balance, shares at Sep. 30, 2013   8,012