Quarterly report pursuant to Section 13 or 15(d)

3. Summary of Significant Accounting Policies (Details 2)

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3. Summary of Significant Accounting Policies (Details 2) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Numerator:        
Net loss $ (1,066,041) $ (509,692) $ (1,845,410) $ (1,572,599)
Accrued dividend for Preferred Stock (39,237) (394,430) (71,410) (418,844)
Deemed dividend on Series J Convertible Preferred Stock (68,634)    (651,182)   
Deemed dividend on warrant modifications    (185,544)    (185,544)
Net loss applicable to common shareholders $ (1,173,912) $ (1,089,666) $ (2,568,002) $ (2,176,987)
Denominator for basic and diluted loss per share:        
Weighted average common stock shares outstanding 11,521,794 10,197,850 11,883,797 10,352,461
Loss per common share - basic and diluted $ (0.10) $ (0.11) $ (0.22) $ (0.21)