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Preferred Stock	9 Months Ended
Preferred Stock	Sep. 30, 2017
Temporary Equity Disclosure [Abstract]
Preferred Stock	8.Preferred Stock We were authorized to issue up to 10,000,000 shares of convertible preferred stock as of September 30, 2017 and December 31, 2016. No shares of convertible preferred stock were issued and outstanding as of September 30, 2017 or December 31, 2016.