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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - 6 months ended Jun. 30, 2017 - USD ($)
Total
Common Stock [Member]
Additional Paid In Capital [Member]
Accumulated Deficit [Member]
Beginning Balance, Amount at Dec. 31, 2016 $ 6,184,587 $ 8,421 $ 151,991,974 $ (145,815,808)
Beginning Balance, Share at Dec. 31, 2016   8,421,185    
Common stock and warrants issued in private placement, Amount 6,190,003 $ 1,504 6,188,499 0
Common stock and warrants issued in private placement, Share   1,503,567    
Fees and legal costs relating to private placement (781,660) $ 0 (781,660) 0
Exercise of warrants, Amount 666,666 $ 168 666,498 0
Exercise of warrants, Share   167,926    
Legal costs relating to exercise of warrants (28,000) $ 0 (28,000) 0
Fair value of repriced warrants as inducement 0 0 622,042 (622,042)
Stock-based compensation, Amount 647,387 $ 66 647,321 0
Stock-based compensation, Share   66,315    
Net loss (4,313,262) $ 0 0 (4,313,262)
Ending Balance, Amount at Jun. 30, 2017 $ 8,565,721 $ 10,159 $ 159,306,674 $ (150,751,112)
Ending Balance, Share at Jun. 30, 2017   10,158,993