Annual report pursuant to Section 13 and 15(d)

Statements of Convertible Preferred Stock and Stockholder's Equity (Deficit)

v3.6.0.2
Statements of Convertible Preferred Stock and Stockholder's Equity (Deficit) - USD ($)
Total
Common stock
Additional paid in capital
Accumulated deficit
Redeemable Convertible Preferred Stock
Common stock
Series A-1 convertible preferred stock
Series B convertible preferred stock
Balance at the beginning at Dec. 31, 2013         $ 19,856,633      
Balance at the beginning (in shares) at Dec. 31, 2013         40,190,902      
Increase (Decrease) in Temporary Equity [Roll Forward]                
Extinguishment upon modification of Series A and A-1 convertible preferred stock and issuance of common stock dividends             $ (6,004,417)  
Conversion of convertible promissory notes in exchange for Series B convertible preferred stock               $ 1,405,003
Conversion of convertible promissory notes in exchange for Series B convertible preferred stock (in shares)               5,597,618
Conversion of demand notes in exchange for Series B convertible preferred stock, net of investor rights obligation               $ 837,313
Conversion of demand notes in exchange for Series B convertible preferred stock, net of investor rights obligation (in shares)               3,333,331
Issuance of Series B convertible preferred stock net of issuance costs and investor rights obligation               $ 12,250,999
Issuance of stock (in shares)               50,017,786
Balance at the end at Dec. 31, 2014         $ 28,345,531      
Balance at the end (in shares) at Dec. 31, 2014         99,139,637      
Balance at the beginning at Dec. 31, 2013 $ (17,846,675) $ 643 $ 9,170,468 $ (27,017,786)        
Balance at the beginning (in shares) at Dec. 31, 2013   642,844            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Extinguishment upon modification of Series A and A-1 convertible preferred stock and issuance of common stock dividends 6,004,611 $ 7 6,004,604          
Extinguishment upon modification of Series A and A-1 convertible preferred stock and issuance of common stock dividends (in shares)   6,877            
Reclassification of common stock warrants from liabilities to equity 426,303   426,303          
Issuance of Series B convertible preferred stock net of issuance costs and investor rights obligation 54,107   54,107          
Issuance of stock (in shares)               50,017,786
Issuance of common stock for conversion of preferred stock upon closing of initial public offering               $ 1,405,003
Issuance of common stock for conversion of preferred stock upon closing of initial public offering (in shares)               5,597,618
Stock-based compensation 1,086,581   1,086,581          
Net loss (16,055,591)     (16,055,591)        
Balance at the end at Dec. 31, 2014 (26,330,664) $ 650 16,742,063 (43,073,377)        
Balance at the end (in shares) at Dec. 31, 2014   649,721            
Increase (Decrease) in Temporary Equity [Roll Forward]                
Conversion of convertible promissory notes in exchange for Series B convertible preferred stock 28,344,157   28,340,177     $ 3,980    
Conversion of convertible promissory notes in exchange for Series B convertible preferred stock (in shares)           3,980,422    
Issuance of stock (in shares)   4,020,000            
Issuance of common stock for conversion of preferred stock upon closing of initial public offering         $ (28,345,531)      
Issuance of common stock for conversion of preferred stock upon closing of initial public offering (in shares)         (99,139,637)      
Balance at the end at Dec. 31, 2015         $ 0      
Balance at the end (in shares) at Dec. 31, 2015         0      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock from sale of shares under common stock purchase agreement, net of offering costs 21,165,589 $ 4,020 21,161,569          
Issuance of stock (in shares)   4,020,000            
Issuance of common stock for conversion of preferred stock upon closing of initial public offering 28,344,157   28,340,177     $ 3,980    
Issuance of common stock for conversion of preferred stock upon closing of initial public offering (in shares)           3,980,422    
Stock-based compensation 394,748   394,748          
Net loss (10,490,103)     (10,490,103)        
Balance at the end at Dec. 31, 2015 13,083,727 $ 8,650 66,638,557 (53,563,480)        
Balance at the end (in shares) at Dec. 31, 2015   8,650,143            
Increase (Decrease) in Temporary Equity [Roll Forward]                
Issuance of stock (in shares)   763,998            
Balance at the end at Dec. 31, 2016         $ 0      
Balance at the end (in shares) at Dec. 31, 2016         0      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Issuance of common stock from sale of shares under common stock purchase agreement, net of offering costs 1,899,987 $ 764 1,899,223          
Issuance of stock (in shares)   763,998            
Shares purchased through employee stock purchase plan 0 $ 20 (20)          
Shares purchased through employee stock purchase plan (in shares)   20,000            
Stock-based compensation 1,694,891   1,694,891          
Net loss (16,471,603)     (16,471,603)        
Balance at the end at Dec. 31, 2016 $ 207,002 $ 9,434 $ 70,232,651 $ (70,035,083)        
Balance at the end (in shares) at Dec. 31, 2016   9,434,141