Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v3.19.3
Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Jun. 30, 2019
Dec. 31, 2018
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 88,000,000 580,000,000
Common stock, shares issued (in shares) 43,168,161 11,661,485
Common stock, shares outstanding (in shares) 43,168,161 11,661,485
Preferred stock, shares outstanding (in shares) 1,707,920  
Series E Preferred Stock [Member]    
Redeemable convertible preferred, par value (in dollars per share) $ 0.001 $ 0.001
Redeemable convertible preferred, shares authorized (in shares) 2,900,000 0
Redeemable convertible preferred, shares issued (in shares) 1,707,919 0
Redeemable convertible preferred, shares outstanding (in shares) 1,707,919 0
Preferred stock, shares outstanding (in shares) 1,707,920  
Convertible Series A Preferred Stock [Member]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares issued (in shares) 0 2,391,403
Preferred stock, shares outstanding (in shares) 0 2,391,403