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Condensed Consolidated Balance Sheets (Unaudited) (USD $)
Sep. 30, 2011
Dec. 31, 2010
Current assets  
Cash and cash equivalents$ 1,348,000$ 7,033,000
Receivables119,0001,018,000
Inventory192,0000
Prepaid expenses and other current assets27,00070,000
Total current assets1,686,0008,121,000
Property and equipment, net55,00032,000
Patents, net415,000574,000
Other assets64,00044,000
Total assets2,220,0008,771,000
Current liabilities  
Accounts payable1,629,0002,984,000
Accrued expenses857,000857,000
Dividends payable5,966,0004,443,000
Accrued interest payable30,000126,000
Convertible debt, current portion5,500,0005,500,000
Current portion of deferred revenue285,000347,000
Total current liabilities14,267,00014,257,000
Derivative liability - warrants1,775,0005,087,000
Derivative liability - preferred stock6,310,0005,840,000
Long-term deferred revenue3,335,0004,382,000
Total liabilities25,687,00029,566,000
Commitments and contingencies  
Stockholders' deficit  
Convertible Series A preferred stock - $.01 par value; authorized 2,000,000 shares; 2,958.3617 shares issued at September 30,2011 and 2,978.3617 shares issued at December 31, 201000
Common stock - $.01 par value; authorized 100,000,000 shares;issued, 19,517,296 at September 30, 2011 and 19,115,010 at December 31, 2010195,000191,000
Additional paid-in capital231,617,000230,153,000
Treasury stock, at cost - 163 shares(4,000)(4,000)
Accumulated deficit(255,275,000)(251,135,000)
Total stockholders' deficit(23,467,000)(20,795,000)
Total liabilities and stockholders' deficit$ 2,220,000$ 8,771,000