Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited)

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited) - $ / shares
Sep. 30, 2019
Dec. 31, 2018
Statement Of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 666 0
Preferred stock, shares outstanding 666 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 42,441,227 33,765,864
Common stock, shares outstanding 42,441,227 33,765,864
Convertible preferred Stock, shares issued upon conversion 666,000