Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statement of Stockholders' Equity

v2.4.0.8
Consolidated Statement of Stockholders' Equity (USD $)
Preferred Stock [Member]
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Total
Balance at Dec. 31, 2012 $ 7 $ 113,019 $ 273,039,442 $ (274,557,844) $ (1,405,376)
Balance, shares at Dec. 31, 2012   113,018,772      
Balance, shares at Dec. 31, 2012 6,938        
Issued stock in connection with public offerings, net   3,642 9,212,699   9,216,341
Issued stock in connection with public offerings, net, shares   3,642,389      
Issued stock upon exercise of stock options, net   40 (9,201)   (9,161)
Issued stock upon exercise of stock options, net, shares   39,649      
Issued restricted stock   61     61
Issued restricted stock, shares   61,250      
Cancelled stock to pay employee tax obligations   (194) (610,362)   (610,556)
Cancelled stock to pay employee tax obligations, shares   (194,077)      
Issued stock upon exercise of warrants 2 3,000 6,158,330   6,161,332
Issued stock upon exercise of warrants, shares 2,365 3,000,000      
Issued stock to 401(k) plan   22 66,755   66,777
Issued stock to 401(k) plan, shares   22,126     22,126
Issued warrants in connection with debt issuance     967,115   967,115
Stock compensation expense     1,422,125   1,422,125
Net loss       (17,641,370) (17,641,370)
Balance at Jun. 30, 2013 $ 9 $ 119,590 $ 290,246,903 $ (292,199,214) $ (1,832,712)
Balance, shares at Jun. 30, 2013   119,590,109      
Balance, shares at Jun. 30, 2013 9,303