Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED)

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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED) - 6 months ended Jun. 30, 2017 - USD ($)
Series A Convertible Preferred Stock [Member]
Additional Paid-in Capital [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Total
Balance, beginning at Dec. 31, 2016 $ 56,804 $ 60,344,050 $ (57,303,748) $ 3,097,106
Balance, beginning (in shares) at Dec. 31, 2016 3,786,913     3,786,913
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock in Class A units, net of issuance costs of $65,816     $ 17,910 811,774   $ 829,684
Issuance of common stock in Class A units, net of issuance costs of $65,816 (in shares)     1,194,000      
Allocation of Class A unit proceeds to warrant liability       (328,350)   (328,350)
Issuance of Series A convertible preferred stock in Class B units, net of issuance costs of $267,231 $ 4 $ 3,234,769       3,234,773
Issuance of Series A convertible preferred stock in Class B units, net of issuance costs of $267,231 (in shares) 3,502          
Allocation of Series A convertible preferred stock to warrants and beneficial conversion feature   (2,568,132)   1,284,066   (1,284,066)
Deemed Dividend on Series A Convertible Preferred Stock   2,568,132 $ 2,568,132 (2,568,132)    
Conversion of Series A Convertible Preferred Stock to common stock $ (3) (2,459,792) $ 53,260 $ 2,406,535  
Conversion of Series A Convertible Preferred Stock to common stock (in shares) (2,663)   3,550,664      
Reclassification of warrant liability upon net cashless exercise of common stock warrants     $ 22,362      
Reclassification of warrant liability upon net cashless exercise of common stock warrants (in shares)     1,490,833 878,126   900,488
Issuance of common stock upon warrant exercise for cash     $ 150 $ 2,450   $ 2,600
Issuance of common stock upon warrant exercise for cash (in shares)     10,000      
Shares tendered for liability warrant exercise     $ (22,362) (775,233)   (797,595)
Shares tendered for liability warrant exercise (in shares)     (1,490,833)      
Amortization of commitment shares       (39,705)   (39,705)
Compensation cost for stock options granted to executives and employees       336,115   336,115
Net loss         (3,945,043) (3,945,043)
Balance, ending at Jun. 30, 2017 $ 1 $ 774,977 $ 150,486 $ 63,126,929 $ (61,248,791) $ 2,803,602
Balance, ending (in shares) at Jun. 30, 2017 839   10,032,410     10,032,410