Quarterly report pursuant to Section 13 or 15(d)

CONDENSED BALANCE SHEETS (Parenthetical)

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CONDENSED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Office equipment, accumulated depreciation $ 2 $ 0
Intangible assets, accumulated amortization $ 152 $ 145
Convertible preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Convertible preferred stock, shares authorized 30,000,000 30,000,000
Convertible preferred stock, shares issued 3,000 2,828
Convertible preferred stock, shares outstanding 3,000 2,828
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized 150,000,000 150,000,000
Common stock, shares issued 1,622,417 1,398,832
Common stock, shares outstanding 1,622,417 1,398,832