Related Party	12 Months Ended
Dec. 31, 2017
Related Party [Abstract]
Related Party	13. Related Party During the year ended December 31, 2017 and 2016, the Company incurred travel reimbursement expenses of $22,000 and $46,000, respectively, payable to Biosciences Managers. Two members of the Company’s board of directors serve as managing directors of Biosciences Managers. During the year ended December 31, 2017, the Company issued 110,772 shares of common stock to One Funds Management Limited as Trustee for Asia Pacific Healthcare Fund II (“One Funds”) in connection with the CSIA Amendment (See Note 9). During the year ended December 31, 2016, the Company issued 99,666 shares of common stock to One Funds, 53,000 shares in connection with the CSIA and 46,666 shares in connection with the Company’s November 2016 public offering of common stock and warrants to purchase common stock. Two members of the Company’s board of directors are affiliated with One Funds.

Related Party

12 Months Ended

Dec. 31, 2017

13. Related Party

During the year ended December 31, 2017 and 2016, the Company incurred travel reimbursement expenses of $22,000 and $46,000, respectively, payable to Biosciences Managers. Two members of the Company’s board of directors serve as managing directors of Biosciences Managers.

During the year ended December 31, 2017, the Company issued 110,772 shares of common stock to One Funds Management Limited as Trustee for Asia Pacific Healthcare Fund II (“One Funds”) in connection with the CSIA Amendment (See Note 9). During the year ended December 31, 2016, the Company issued 99,666 shares of common stock to One Funds, 53,000 shares in connection with the CSIA and 46,666 shares in connection with the Company’s November 2016 public offering of common stock and warrants to purchase common stock. Two members of the Company’s board of directors are affiliated with One Funds.