Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statement of Stockholders' Equity

 v2.3.0.11
Consolidated Statement of Stockholders' Equity (USD $)
Total
Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Beginning Balance at Dec. 31, 2010 $ 4,131,745 $ 11 $ 86,320 $ 254,915,713 $ (250,870,299)
Beginning Balance (in shares) at Dec. 31, 2010   11,000 86,319,913    
Issued restricted stock (in shares)     102,000    
Issued restricted stock 102 0 102 0 0
Cancelled restricted stock (in shares)     (90,000)    
Cancelled restricted stock 0 0 (90) 90 0
Issued stock to 401(k) plan at $1.59 (in shares)     30,438    
Issued stock to 401(k) plan at $1.59 48,289 0 30 48,259 0
Issued stock upon exercise of warrants, net (in shares)     3,641,815    
Issued stock upon exercise of warrants, net 7,515,395 0 3,642 7,511,753 0
Issued stock upon exercise of stock options, net (in shares)     1,535,180    
Issued stock upon exercise of stock options, net (2,220,028) 0 1,535 (2,221,563) 0
Effect of change in terms of warrants 1,978,818 0 0 1,978,818 0
Conversion of Series B preferred stock to common stock(in shares)   (917) 2,998,590    
Conversion of Series B preferred stock to common stock 0 (1) 2,999 (2,998) 0
Stock compensation expense 1,284,095 0 0 1,284,095 0
Preferred stock dividends (50,000) 0 0 0 (50,000)
Comprehensive loss:          
Net loss (6,611,019) 0 0 0 (6,611,019)
Ending Balance at Jun. 30, 2011 $ 6,077,397 $ 10 $ 94,538 $ 263,514,167 $ (257,531,318)
Ending Balance (in shares) at Jun. 30, 2011   10,083 94,537,936