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PER SHARE DATA (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Common stock equivalents (in shares)                 29,583,046 21,660,400 18,022,188
Net Loss (Numerator)                 $ (13,063,526) $ (9,732,399) $ (7,482,636)
Shares (Denominator) (in shares)                 94,303,264 89,552,788 74,568,658
Per-Share Amount (in dollars per share) $ (0.04) $ (0.04) $ (0.03) $ (0.03) $ (0.04) $ (0.03) $ (0.02) $ (0.02) $ (0.14) $ (0.11) $ (0.10)
Stock Options [Member]
                     
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Common stock equivalents (in shares)                 15,878,116 15,455,470 11,598,411
Warrants [Member]
                     
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Common stock equivalents (in shares)                 6,204,930 6,204,930 6,423,777
Convertible Notes Payable [Member]
                     
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Common stock equivalents (in shares)                 7,500,000