Quarterly report pursuant to Section 13 or 15(d)

3. Summary of Significant Accounting Policies (Details)

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3. Summary of Significant Accounting Policies (Details)
Dec. 31, 2012
Dec. 31, 2011
Loss per Common Share    
Series A preferred stock issued and outstanding 15,000,000 4,370,550
Warrant shares issuable to Platinum upon exercise of common stock warrants by Platinum upon exchange of Series A preferred stock under the terms of the October 11, 2012 Note Purchase and Exchange Agreement 7,500,000   
Outstanding options under the 2008 and 1999 Stock Incentive Plans 4,966,771 4,806,114
Outstanding warrants to purchase common stock 9,873,034 3,451,728
October 2012 10% convertible Exchange Note and Investment Notes issued to Platinum including accrued interest through December 31, 2012 (2) 4,645,198 [1]   
Total 41,895,003 12,628,392
[1] assumes mandatory conversion in connection with a qualified financing at $2.00 per share, plus fee warrants to placement agent